--- mi/mipointer.c.orig	2008-10-17 15:46:26.000000000 +0200
+++ mi/mipointer.c	2008-10-17 15:47:11.000000000 +0200
@@ -252,7 +252,7 @@ miPointerWarpCursor (pScreen, x, y)
     	{
 	    miPointer.devx = x;
 	    miPointer.devy = y;
-	    if(!miPointer.pCursor->bits->emptyMask)
+	    if(miPointer.pCursor && !miPointer.pCursor->bits->emptyMask)
 		(*pScreenPriv->spriteFuncs->MoveCursor) (pScreen, x, y);
     	}
 	miPointer.x = x;
@@ -345,7 +345,7 @@ miPointerUpdateSprite (DeviceIntPtr pDev
     {
 	miPointer.devx = x;
 	miPointer.devy = y;
-	if(!miPointer.pCursor->bits->emptyMask)
+	if(miPointer.pCursor && !miPointer.pCursor->bits->emptyMask)
 	    (*pScreenPriv->spriteFuncs->MoveCursor) (pScreen, x, y);
     }
 }
@@ -416,7 +416,7 @@ miPointerMoved (DeviceIntPtr pDev, Scree
     {
 	miPointer.devx = x;
 	miPointer.devy = y;
-	if(!miPointer.pCursor->bits->emptyMask)
+	if(miPointer.pCursor && !miPointer.pCursor->bits->emptyMask)
 	    (*pScreenPriv->spriteFuncs->MoveCursor) (pScreen, x, y);
     }