World Bulider crashes

I have serious problem. When I'm working in WB, after a few minutes my pc literally freezes, and after minute or something I got bluescreen. It's very annoying, because I lost a lot of work over my new map. Can anyone help?

This happens if you use the heightmap editor I guess? If yes, then you used probably to big layers to modify the terrain. I had this problem too a while ago but then it suddely dissappeard.

Wow.... actually you're right Walki1 ! It crashed again, and I was correcting some hills.... next time I won't use huge layers. THX for help  :)

You should update your drivers. This will probably help.