Level editor crash

[mexson]

Hi everyone

I have a problem with the level editor. When I´m using it, sometimes the screen turns off. After a few seconds, the light of the screen returns, and the computer tells me that the AMD driver of the screen have a problem.

I use Windows 7, 32 bits. I also use (in the same computer) Ubuntu 12.04, 64 bits, but I have the same problem in Ubuntu. Mi card is ATI Radeon HD 5800 Series.


P.S: Sorry for my english, but it´s not my maternal language