diff --git a/hw/kdrive/src/koffscreen.c b/hw/kdrive/src/koffscreen.c
index 61cf37a62..5f5c92f11 100644
--- a/hw/kdrive/src/koffscreen.c
+++ b/hw/kdrive/src/koffscreen.c
@@ -259,6 +259,7 @@ KdOffscreenFree (ScreenPtr pScreen, KdOffscreenArea *area)
     KdOffscreenValidate (pScreen);
 
     area->state = KdOffscreenAvail;
+    area->save = 0;
 
     /*
      * Find previous area
diff --git a/hw/kdrive/vesa/vesa.c b/hw/kdrive/vesa/vesa.c
index 5e6f5d470..e0e8a78eb 100644
--- a/hw/kdrive/vesa/vesa.c
+++ b/hw/kdrive/vesa/vesa.c
@@ -1360,6 +1360,7 @@ vesaEnable(ScreenPtr pScreen)
 	    if (!pscr->fb)
 		return FALSE;
 	    screen->fb[0].frameBuffer = (CARD8 *)(pscr->fb);
+	    screen->memory_base = pscr->fb;
 	    /*
 	     * Set frame buffer mapping
 	     */