--- ../Mesa-6.4.1-org/src/mesa/drivers/dri/i915/i915_state.c	2005-05-10 13:38:56.000000000 +0200
+++ src/mesa/drivers/dri/i915/i915_state.c	2005-12-24 18:20:33.000000000 +0100
@@ -894,7 +894,8 @@
 						DISABLE_SCISSOR_RECT);
       i915->state.Buffer[I915_DESTREG_SR0] = _3DSTATE_SCISSOR_RECT_0_CMD;
       i915->state.Buffer[I915_DESTREG_SR1] = 0;
-      i915->state.Buffer[I915_DESTREG_SR2] = 0;
+      i915->state.Buffer[I915_DESTREG_SR2] = 
+        ((screen->height-1) << 16) | ((screen->width-1) & 0xffff);
    }