--- np2/vram/scrndraw.c	2003/10/16 17:58:13	1.1.1.1
+++ np2/vram/scrndraw.c	2004/02/07 21:23:22	1.4
@@ -59,7 +59,7 @@ static BYTE rasterdraw(SDRAWFN sdrawfn, 
 	clock += np2cfg.realpal;
 	clock -= 32;
 	clock += (gdc.m.para[GDC_SYNC + 5] >> 2) & 0x3f;
-	clock *= pc.raster;
+	clock *= gdc.rasterclock;
 	event = palevent.event;
 	eventterm = event + palevent.events;
 	nextupdate = 0;
@@ -92,7 +92,7 @@ static BYTE rasterdraw(SDRAWFN sdrawfn, 
 				}
 			}
 		}
-		clock -= 2 * pc.raster;										// ver0.28
+		clock -= 2 * gdc.rasterclock;
 	}
 	if (y < maxy) {
 		if (!(np2cfg.LCD_MODE & 1)) {
@@ -109,7 +109,10 @@ static BYTE rasterdraw(SDRAWFN sdrawfn, 
 		}
 		(*sdrawfn)(sdraw, maxy);
 	}
-	if (nextupdate) {
+	if (palevent.vsyncpal) {
+		return(2);
+	}
+	else if (nextupdate) {
 		for (y=0; y<nextupdate; y+=2) {
 			*(UINT16 *)(renewal_line + y) |= 0x8080;
 		}