diff --git a/src/video/vid_et4000.c b/src/video/vid_et4000.c
index ae6b7ae82..5fe524fd8 100644
--- a/src/video/vid_et4000.c
+++ b/src/video/vid_et4000.c
@@ -745,7 +745,7 @@ et4000_kasan_recalctimings(svga_t *svga)
 
     if (svga->render == svga_render_text_80 && (et4000->kasan_cfg_regs[0] & 8)) {
         svga->hdisp             += svga->dots_per_clock;
-        svga->ma_latch          -= 5;
+        svga->ma_latch          -= 4;
         svga->ca_adj             = (et4000->kasan_cfg_regs[0] >> 6) - 3;
         svga->ksc5601_sbyte_mask = (et4000->kasan_cfg_regs[0] & 4) << 5;
         if ((et4000->kasan_cfg_regs[0] & 0x23) == 0x20 && (et4000->kasan_cfg_regs[4] & 0x80) && ((svga->crtc[0x37] & 0x0B) == 0x0A))
diff --git a/src/video/vid_svga.c b/src/video/vid_svga.c
index cbb7f12e8..b20364689 100644
--- a/src/video/vid_svga.c
+++ b/src/video/vid_svga.c
@@ -1158,9 +1158,9 @@ svga_poll(void *priv)
 
             if (ret) {
                 if (svga->interlace && svga->oddeven)
-                    svga->ma = svga->maback = (svga->rowoffset << 1) + ((svga->crtc[3] & 0x60) >> 5) + svga->hblank_sub;
+                    svga->ma = svga->maback = (svga->rowoffset << 1) + svga->hblank_sub;
                 else
-                    svga->ma = svga->maback = ((svga->crtc[3] & 0x60) >> 5) + svga->hblank_sub;
+                    svga->ma = svga->maback = svga->hblank_sub;
                 svga->ma     = (svga->ma << 2);
                 svga->maback = (svga->maback << 2);
 
@@ -1230,10 +1230,9 @@ svga_poll(void *priv)
             svga->vslines                       = 0;
 
             if (svga->interlace && svga->oddeven)
-                svga->ma = svga->maback = svga->ma_latch + (svga->rowoffset << 1) +
-                           ((svga->crtc[3] & 0x60) >> 5) + svga->hblank_sub;
+                svga->ma = svga->maback = svga->ma_latch + (svga->rowoffset << 1) + svga->hblank_sub;
             else
-                svga->ma = svga->maback = svga->ma_latch + ((svga->crtc[3] & 0x60) >> 5) + svga->hblank_sub;
+                svga->ma = svga->maback = svga->ma_latch + svga->hblank_sub;
 
             svga->ca     = ((svga->crtc[0xe] << 8) | svga->crtc[0xf]) + ((svga->crtc[0xb] & 0x60) >> 5) + svga->ca_adj;
             svga->ma     = (svga->ma << 2);