diff --git a/configfile.c b/configfile.c
index 47cd6ac..07c93f9 100644
--- a/configfile.c
+++ b/configfile.c
@@ -171,7 +171,7 @@ int getcolors(tOutput* output,char* line)
 int readconfigfile(tOutput* output,char* filename)
 {
 	tFptr f=fopen(filename,"rb");
-	unsigned char line[512];
+	char line[512];
 	unsigned char c;
 	int lineidx=0;
 	int	keyboardcnt;
diff --git a/correlation.c b/correlation.c
index ef49608..79b40f2 100644
--- a/correlation.c
+++ b/correlation.c
@@ -27,7 +27,7 @@ void find_longestmatch(tOutput* output,tCorrelation* correlation,tBuffer* buf1,t
 		mvwprintw(output->win,offsy+1,offsx+1,"pos1:");
 		mvwprintw(output->win,offsy+4,offsx+1,"longest match:");
 		mvwprintw(output->win,offsy+5,offsx+1,"at");
-		if (smallwin) mvwprintw(smallwin,4,1,"%18lli",0);
+		if (smallwin) mvwprintw(smallwin,4,1,"%18i",0);
 		wrefresh(output->win);
 	}
 	
@@ -115,7 +115,7 @@ void find_bestmatch(tOutput* output,tCorrelation* correlation,tBuffer* buf1,tBuf
 		mvwprintw(output->win,offsy+1,offsx+1,"pos1:");
 		mvwprintw(output->win,offsy+4,offsx+1,"best match:");
 		mvwprintw(output->win,offsy+5,offsx+1,"at");
-		if (smallwin) mvwprintw(smallwin,4,1,"%18lli",0);
+		if (smallwin) mvwprintw(smallwin,4,1,"%18i",0);
 		wrefresh(output->win);
 	}
 	
@@ -178,7 +178,6 @@ void find_mindiff(tOutput* output,tCorrelation* correlation,tBuffer* buf1,tBuffe
 	WINDOW* smallwin=NULL;
 	tBuffer* smallbuf;
 	tBuffer* bigbuf;
-	tInt64	match;
 	tBool	found=0;
 
 	
@@ -207,7 +206,6 @@ void find_mindiff(tOutput* output,tCorrelation* correlation,tBuffer* buf1,tBuffe
 	for (pos1=-(tInt64)smallbuf->bufsize;pos1<(tInt64)bigbuf->bufsize && correlation->mindiff;pos1++)
 	{
 		diff=0;
-		match=0;
 		if (smallwin) mvwprintw(smallwin,1,3,"%16lli",((tInt64)bigbuf->bufsize-pos1));
 		else fprintf(stderr,"%16lli\r",((tInt64)buf1->bufsize-pos1));
 
diff --git a/datatypes.h b/datatypes.h
index 2f18d6e..ed9aa6e 100644
--- a/datatypes.h
+++ b/datatypes.h
@@ -68,7 +68,7 @@ typedef struct _tCorrelation
 {	
 	tBool		correlated;
 	corr_algorithms algorithm;
-	tInt64		start_mindiff;
+	tUInt64		start_mindiff;
 	tInt64		mindiff;
 	tInt64		mindiffpos;
 	tInt64		bestmatch;
diff --git a/hexcalc.c b/hexcalc.c
index 18bd2fd..c10d721 100644
--- a/hexcalc.c
+++ b/hexcalc.c
@@ -82,7 +82,7 @@ void hexcalc(tOutput* output,thHexCalc* hHexCalc)
 			setcolor(output,(field==FIELDBIN && cursorline==i)?COLOR_INPUT:COLOR_TEXT);
 			for (j=0;j<32;j++)
 			{
-				if (x || !j)	mvwprintw(output->win,offsy+18-i,offsx+76-j,"%i",(x&1));
+				if (x || !j)	mvwprintw(output->win,offsy+18-i,offsx+76-j,"%lli",(x&1));
 				else		mvwprintw(output->win,offsy+18-i,offsx+76-j," ");
 				x>>=1;
 			}
@@ -96,7 +96,7 @@ void hexcalc(tOutput* output,thHexCalc* hHexCalc)
 		setcolor(output,(field==FIELDBIN && cursorline==-1)?COLOR_INPUT:COLOR_TEXT);
 		for (j=0;j<32;j++)
 		{
-			if (x || !j)	mvwprintw(output->win,offsy+19,offsx+76-j,"%i",(x&1));
+			if (x || !j)	mvwprintw(output->win,offsy+19,offsx+76-j,"%lli",(x&1));
 			else		mvwprintw(output->win,offsy+19,offsx+76-j," ");
 			x>>=1;
 		}
diff --git a/main.c b/main.c
index a271723..2460467 100644
--- a/main.c
+++ b/main.c
@@ -214,7 +214,6 @@ int parsecommandlineoptions(int argc,char** argv,tInt64* baseaddr1,tInt64* basea
 				case 's':
 						{	
 							tInt8	stringtype=0;	// 0=unknown, 1=ascii, 2=hex
-							tBool	forward=1;
 							tSearch* search;
 							tBool* gosearch;
 							int j;
@@ -225,7 +224,6 @@ int parsecommandlineoptions(int argc,char** argv,tInt64* baseaddr1,tInt64* basea
 							{
 								if (lastopt[j]=='a' || lastopt[j]=='A') stringtype=1;
 								if (lastopt[j]=='h' || lastopt[j]=='H') stringtype=2;
-								if (lastopt[j]=='b' || lastopt[j]=='B') forward=0;
 								if (lastopt[j]=='1')
 								{
 									search=search1;
diff --git a/markers.c b/markers.c
index 925f890..2281982 100644
--- a/markers.c
+++ b/markers.c
@@ -95,7 +95,7 @@ int	writemarkerfile(tMarkers* markers,char* filename)
 	fclose(f);
 	return	RETOK;	
 }
-tInt8 gotomask(tOutput* output,tMarkers* markers,tUInt64* cursorpos,tInt64 baseaddr)
+tInt8 gotomask(tOutput* output,tMarkers* markers,tInt64* cursorpos,tInt64 baseaddr)
 {
 	tUInt64 actcursorpos=*cursorpos+baseaddr;
 	tUInt64 newcursorpos=*cursorpos+baseaddr;
@@ -168,7 +168,7 @@ tInt8 gotomask(tOutput* output,tMarkers* markers,tUInt64* cursorpos,tInt64 basea
 
 			snprintf(buf,17,"%c%llx",markers->relative[i],markers->cursorpos[i]);
 			mvwprintw(output->win,offsy+5+i,offsx+32-strlen(buf),"%s",buf);
-			mvwprintw(output->win,offsy+5+i,offsx+42,"%16llx",abs(markers->cursorpos[i]-actcursorpos));
+			mvwprintw(output->win,offsy+5+i,offsx+42,"%16x",abs(markers->cursorpos[i]-actcursorpos));
 		}
 		setcolor(output,COLOR_TEXT);
 		mvwprintw(output->win,offsy+3,offsx+9,"%17llx",newcursorpos);
diff --git a/markers.h b/markers.h
index 210d3cb..d25766f 100644
--- a/markers.h
+++ b/markers.h
@@ -6,7 +6,7 @@
 
 void* initmarkers();
 int	parsemarkerfile(tMarkers* markers,char* filename);
-tInt8 gotomask(tOutput* output,tMarkers* markers,tUInt64* cursorpos,tInt64 baseaddr);
+tInt8 gotomask(tOutput* output,tMarkers* markers,tInt64* cursorpos,tInt64 baseaddr);
 
 
 #endif
diff --git a/menu.c b/menu.c
index 6369d57..226cf63 100644
--- a/menu.c
+++ b/menu.c
@@ -219,8 +219,6 @@ tInt8 MenuInteract(tOutput* output,tMenu* Menu,tInt16 offsy,tInt16 offsx)
 {
 	tInt16	ch;
 	int	i;
-	tInt8	retval;
-
 	ch=0;
 	printMenu(output,Menu,offsy,offsx);
 	while (ch!=KEYENTER)
@@ -233,7 +231,7 @@ tInt8 MenuInteract(tOutput* output,tMenu* Menu,tInt16 offsy,tInt16 offsx)
 			case	KEYUP:		MenuMoveUp(Menu);						break;
 			case	KEYDOWN:	MenuMoveDown(Menu);						break;
 			case	KEYTAB:		Menu->menuitemactive=(Menu->menuitemactive+1)%Menu->menuitemnum;break;
-			case	KEYENTER:	retval=Menu->menuitemactive;					break;
+			case	KEYENTER:	break;
 			default:
 				if (ch>=' ' && ch<127)
 				{
diff --git a/output.c b/output.c
index 327fd61..c9d1036 100644
--- a/output.c
+++ b/output.c
@@ -87,7 +87,6 @@ void printbuffersingle(tOutput* output,tBuffer* hBuf1,tInt64 cursorpos1,tUInt64
 	int addrwidth;
 	int bytesperline;
 	tInt32 intpos1;
-	tInt32 charcnt;
 
 
 
@@ -120,13 +119,12 @@ void printbuffersingle(tOutput* output,tBuffer* hBuf1,tInt64 cursorpos1,tUInt64
 	intpos1=getbufferidx(hBuf1,firstpos1);
 	if (intpos1>=0)
 	{
-		charcnt=0;
 		for (i=0;i<LINES-2;i++)
 		{
 			tBool colhex;
 			setcolor(output,COLOR_HEXFIELD);
-			if (addrwidth==8)	mvwprintw(output->win,i+1,0, "% 8X    ",(tUInt32)(firstpos1+hBuf1->baseaddr));
-			else			mvwprintw(output->win,i+1,0,"% 16llX    ",firstpos1+hBuf1->baseaddr);
+			if (addrwidth==8)	mvwprintw(output->win,i+1,0, "%8X    ",(tUInt32)(firstpos1+hBuf1->baseaddr));
+			else			mvwprintw(output->win,i+1,0,"%16llX    ",firstpos1+hBuf1->baseaddr);
 
 			mvwprintw(output->win,i+1,COLS-bytesperline-5,"      ");
 			wmove(output->win,i+1,addrwidth+3);
@@ -206,7 +204,6 @@ void printbufferdiff(tOutput* output,tBuffer* hBuf1,tBuffer* hBuf2,tInt64 cursor
 	tInt32 intpos1b;
 	tInt32 intpos2;
 	tInt32 intpos2b;
-	tInt32 charcnt;
 	uicolors oldcolor;
 
 
@@ -243,10 +240,10 @@ void printbufferdiff(tOutput* output,tBuffer* hBuf1,tBuffer* hBuf2,tInt64 cursor
 		mvwprintw(output->win,0,1,"[        /        ]");
 		mvwprintw(output->win,LINES/2,1,"[        /        ]");
 		setcolor(output,COLOR_TEXT);
-		mvwprintw(output->win,0,2,"%8X",(tUInt32)cursorpos1+hBuf1->baseaddr);
-		mvwprintw(output->win,0,11,"%8X",(tUInt32)hBuf1->bufsize+hBuf1->baseaddr);
-		mvwprintw(output->win,LINES/2,2,"%8X",(tUInt32)cursorpos2+hBuf2->baseaddr);
-		mvwprintw(output->win,LINES/2,11,"%8X",(tUInt32)hBuf2->bufsize+hBuf2->baseaddr);
+		mvwprintw(output->win,0,2,"%8llX",(tUInt32)cursorpos1+hBuf1->baseaddr);
+		mvwprintw(output->win,0,11,"%8llX",(tUInt32)hBuf1->bufsize+hBuf1->baseaddr);
+		mvwprintw(output->win,LINES/2,2,"%8llX",(tUInt32)cursorpos2+hBuf2->baseaddr);
+		mvwprintw(output->win,LINES/2,11,"%8llX",(tUInt32)hBuf2->bufsize+hBuf2->baseaddr);
 	}
 	setcolor(output,COLOR_HEADER);
 	mvwprintw(output->win,0,COLS-2-strlen(hBuf1->filename),"%s",hBuf1->filename);
@@ -267,15 +264,14 @@ void printbufferdiff(tOutput* output,tBuffer* hBuf1,tBuffer* hBuf2,tInt64 cursor
 	}
 	if (intpos1>=0 || intpos2>=0)
 	{
-		charcnt=0;
 		intpos1b=intpos1;
 		intpos2b=intpos2;
 
 		for (i=0;i<(LINES+1)/2-2;i++)
 		{
 			setcolor(output,COLOR_HEXFIELD);
-			if (addrwidth==8)	mvwprintw(output->win,i+1,0, "% 8X    ",(tUInt32)(cursorpos1+hBuf1->baseaddr));
-			else			mvwprintw(output->win,i+1,0,"% 16llX    ",cursorpos1+hBuf1->baseaddr);
+			if (addrwidth==8)	mvwprintw(output->win,i+1,0, "%8X    ",(tUInt32)(cursorpos1+hBuf1->baseaddr));
+			else			mvwprintw(output->win,i+1,0,"%16llX    ",cursorpos1+hBuf1->baseaddr);
 
 			mvwprintw(output->win,i+1,COLS-bytesperline-5,"      ");
 			oldcolor=COLOR_HEXFIELD;
@@ -346,8 +342,8 @@ void printbufferdiff(tOutput* output,tBuffer* hBuf1,tBuffer* hBuf2,tInt64 cursor
 		for (i=0;i<(LINES+1)/2-2;i++)
 		{
 			setcolor(output,COLOR_HEXFIELD);
-			if (addrwidth==8)	mvwprintw(output->win,i+1+LINES/2,0, "% 8X    ",(tUInt32)(cursorpos2+hBuf2->baseaddr));
-			else			mvwprintw(output->win,i+1+LINES/2,0,"% 16llX    ",cursorpos2+hBuf2->baseaddr);
+			if (addrwidth==8)	mvwprintw(output->win,i+1+LINES/2,0, "%8X    ",(tUInt32)(cursorpos2+hBuf2->baseaddr));
+			else			mvwprintw(output->win,i+1+LINES/2,0,"%16llX    ",cursorpos2+hBuf2->baseaddr);
 
 			mvwprintw(output->win,i+1+LINES/2,COLS-bytesperline-5,"      ");
 			oldcolor=COLOR_HEXFIELD;
@@ -411,7 +407,7 @@ void printmainmenu(tOutput* output,tBool diffmode)
 {
 	int i;
 	int x;
-	unsigned char* menutextsnodiff[]={
+	char* menutextsnodiff[]={
 "Goto  ",	// F1
 "Search",	// F2
 "Next  ",	// F3
@@ -423,7 +419,7 @@ void printmainmenu(tOutput* output,tBool diffmode)
 "Undo  ",	// F9
 "Quit  "};	// F10
 
-	unsigned char* menutextsdiff[]={
+	char* menutextsdiff[]={
 "      ",	// F1
 "      ",	// F2
 "Next  ",	// F3
diff --git a/search.c b/search.c
index 9adc1e7..22c7833 100644
--- a/search.c
+++ b/search.c
@@ -11,7 +11,7 @@ void	clearsearch(tSearch* search)
 	memset(search,0,sizeof(tSearch));
 	search->forwardnotbackward=1;
 }
-tInt8	searchfor(tSearch* search,tBuffer* buf,tUInt64* cursorpos,tBool nextnotprev)
+tInt8	searchfor(tSearch* search,tBuffer* buf,tInt64* cursorpos,tBool nextnotprev)
 {
 	tInt64	actcursorpos=*cursorpos;
 	tInt64	oldcursorpos=*cursorpos;
@@ -77,10 +77,7 @@ tInt8	searchfor(tSearch* search,tBuffer* buf,tUInt64* cursorpos,tBool nextnotpre
 						// state 2: read until the end of the line
 			tUInt64	x=0;
 			tBool	havenum;
-			tInt64	firstsearchlogpos;
 
-			firstsearchlogpos=search->lastsearchlogpos;
-			
 			setfilepos(frlog,search->lastsearchlogpos);
 			havenum=0;
 			while (!done && !havenum)
diff --git a/search.h b/search.h
index 1928596..414066c 100644
--- a/search.h
+++ b/search.h
@@ -5,6 +5,6 @@
 #include "datatypes.h"
 
 void	clearsearch(tSearch* search);
-tInt8	searchfor(tSearch* search,tBuffer* buf,tUInt64* cursorpos,tBool nextnotprev);
+tInt8	searchfor(tSearch* search,tBuffer* buf,tInt64* cursorpos,tBool nextnotprev);
 
 #endif
diff --git a/ui.c b/ui.c
index fd12a0b..7937450 100644
--- a/ui.c
+++ b/ui.c
@@ -10,7 +10,7 @@
 #include "search.h"
 #include "correlation.h"
 
-void searchmask(tOutput* output,tSearch* search,tBuffer* buf,tUInt64* cursorpos)
+void searchmask(tOutput* output,tSearch* search,tBuffer* buf,tInt64* cursorpos)
 {
 	tInt8	itemnums[10];
 	tMenu	Menu1;
diff --git a/ui.h b/ui.h
index e1dc415..a63bc19 100644
--- a/ui.h
+++ b/ui.h
@@ -5,7 +5,7 @@
 #include "search.h"
 #include "output.h"
 #include "correlation.h"
-void searchmask(tOutput* output,tSearch* search,tBuffer* buf,tUInt64* cursorpos);
+void searchmask(tOutput* output,tSearch* search,tBuffer* buf,tInt64* cursorpos);
 tInt8 savedialog(tOutput* output,tBuffer* buf);
 tInt8 correlationmask(tOutput* output,tCorrelation* correlation);
 #endif