diff --git a/src/osdep/gui/PanelQuickstart.cpp b/src/osdep/gui/PanelQuickstart.cpp
index 90041874..f5a4136b 100644
--- a/src/osdep/gui/PanelQuickstart.cpp
+++ b/src/osdep/gui/PanelQuickstart.cpp
@@ -209,6 +209,8 @@ static void AdjustPrefs(void)
 		changed_prefs.floppyslots[1].dfxtype = DRV_NONE;
 		changed_prefs.cdslots[0].inuse = true;
 		changed_prefs.cdslots[0].type = SCSI_UNIT_IMAGE;
+		changed_prefs.gfx_size.width = 768;
+		changed_prefs.gfx_size.height = 270;
 		break;
 	default:
 		break;