3DS MAX acting weird

[beele]

Well I was modeling today and max worked just fine, I could move and rotate my view just fine. Then I closed max and restarted it and all of a sudden when I move or rotate my view my bsp disappears and only the outline is visible

video of the problem:
http://www.beeles-place.be/max_strange.avi


Is there a way to fix this.
I already repaired max, but that didn't help.

specs:
T7300 2,0 GHZ
2 GB Ram
Nvidia 8600M GT 256MB DDR2(all games play fine)
1GB Intel turbomemory

I have newest video drivers.

[beele]

Sorry for double post.

The problem is gone, I did a recovery of my lappy and now it works like a sharm again.

So because the problem is fixed, I will lock this thread.