Model viewer in hammer. Why must you do this to me?

Ok so sometimes when using the model viewer in hammer I get a strange error where the model that is selected goes berserk. Most of the time the model is completely unrecognizable. Here is a sample.

This is what it did to this tracklight.

This is what it should look like.

So my question is. Why hammer? Why must you do this to me when I am in my mapping zone?

Does anyone know a fix to this? Am I just out of the loop?

Have you covered all the usual issues, like out of date graphics drivers etc?

Yea my GFX Card was updated this past October. This has been happening to me before that.

It seemed to happen after the last SDK update i believe.

Thats really odd. I have never seen that before.

that happens to my 3D view inside hammer when im just flying around my map it all goes SPAZZ

http://1337upload.net/files/ohgawd.PNG

Have you done all the obvious things? (backup, redownload sdk, etc)

I wonder what it would be like to map on acid, it would probably be this.

oh wow, have you tried reinstalling it?

This happened to me once, too. Turns out my graphics card driver had an incompatibility with Vista, though most everything does.

I thought the latest update took a mean poop in its pants. But now im beginning to think its my gcard. Not too sure why it would be tho.

I was thinking a few days ago, that this generation will never know the misery that is windows MEā€¦then i remembered vista.