diff -ur mesa3/src/mesa/drivers/dri/unichrome/via_state.c mesa4/src/mesa/drivers/dri/unichrome/via_state.c
--- mesa3/src/mesa/drivers/dri/unichrome/via_state.c	2007-02-26 15:56:46.000000000 +0000
+++ mesa4/src/mesa/drivers/dri/unichrome/via_state.c	2007-02-27 00:25:37.000000000 +0000
@@ -619,9 +619,9 @@
     }
 
     vmesa->scissorRect.x1 = x;
-    vmesa->scissorRect.y1 = vmesa->driDrawable->h - y - h;
-    vmesa->scissorRect.x2 = x + w;
-    vmesa->scissorRect.y2 = vmesa->driDrawable->h - y;
+    vmesa->scissorRect.y1 = y;
+    vmesa->scissorRect.x2 = x - w;
+    vmesa->scissorRect.y2 = y - h;
 }
 
 static void viaEnable(GLcontext *ctx, GLenum cap, GLboolean state)