diff --git a/ubb-vga/tstimg.c b/ubb-vga/tstimg.c
index 66a4318..539a478 100644
--- a/ubb-vga/tstimg.c
+++ b/ubb-vga/tstimg.c
@@ -463,6 +463,7 @@ void tstimg(void **f, int xres, int yres)
 {
 	char buf[40];
 	double line_freq_hz;
+	int y, n;
 
 	grid(f, xres, yres);
 	sides(f, xres, yres);
@@ -472,25 +473,36 @@ void tstimg(void **f, int xres, int yres)
 	ctext(f, xres, xres/2, yres/2-GRID*0.75, buf, 10, WHITE, 3);
 	ctext(f, xres, xres/2, yres*(CBAR_Y0+CBAR_Y1)/2, buf, 2, 0, 0);
 
+	y = yres/8;
+	n = 5;
+	if (yres < 768)
+		y = yres/16;
+	if (yres < 600)
+		n = 4;
+
 	sprintf(buf, "PIXEL %5.2f MHZ", 336.0/(mode->clkdiv+1));
-	text(f, xres, xres/8, yres/8, buf, 5, WHITE, 1);
+	text(f, xres, xres/8, y, buf, n, WHITE, 1);
+	y += 6*n;
 
 	line_freq_hz = 112000000.0/(mode->line_cycles);
 	sprintf(buf, "LINE  %5.2f KHZ", line_freq_hz/1000);
-	text(f, xres, xres/8, yres/8+5*6, buf, 5, WHITE, 1);
+	text(f, xres, xres/8, y, buf, n, WHITE, 1);
+	y += 6*n;
 
 	sprintf(buf, "FRAME %5.2f HZ",
 	    line_freq_hz/(mode->vsync_lines+ mode->vfront_lines+mode->yres+
 	    mode->vback_lines));
-	text(f, xres, xres/8, yres/8+5*12, buf, 5, WHITE, 1);
+	text(f, xres, xres/8, y, buf, n, WHITE, 1);
+	y += 6*n;
 
 	sprintf(buf, "VERT %d+%d+%d+%d LINES",
 	    mode->vsync_lines, mode->vfront_lines, mode->yres,
 	    mode->vback_lines);
-	text(f, xres, xres/8, yres/8+5*18, buf, 5, WHITE, 1);
+	text(f, xres, xres/8, y, buf, n, WHITE, 1);
+	y += 6*n;
 
 	sprintf(buf, "HOR %4.2f+...+%4.2f = %5.2f US",
 	    CYCLES(mode->hsync_cycles), CYCLES(mode->hback_cycles),
 	    CYCLES(mode->line_cycles));
-	text(f, xres, xres/8, yres/8+5*24, buf, 5, WHITE, 1);
+	text(f, xres, xres/8, y, buf, n, WHITE, 1);
 }