I need help about strange blender 2.49b viewport

When transform properties is on the screen, my blender viewport became like this everytime i press middle mouse button.

Two pictures bellow are normal cube
http://i1121.photobucket.com/albums/l517/feel14045/mulur.jpg

And like this when texture image in the UV window
http://i1121.photobucket.com/albums/l517/feel14045/blender2012-03-1605-55-22-96.png

For the first problem, it fix when i run blender while fraps is running on the backgound and fps overlay in the corner, and it’s back again when i close fraps or i hide fps overlay. I’ve already tried different python version 2.6.5 and 2.6.6 still not fixed. It’s really annoying. Could it be from the graphic driver? If possible, i dont want to downgrade it.

I’m using Blender 2.49b, Python 2.6.6, Win7pro, Ati hd 4650 graphic card and the lattest ati driver.

I’m having the same issue. I recently switched my nvidea card to an ati radion hd 6950. So I am assuming it is an ati issue… Anyone find a solution for this yet?