Im having some odd problems with thextures, they are not rendered properly. I can't explain what it looks like. I will take a screenshot whenever someone tells me how to take one.

(This is probably due to "direct rendering: No" when i do glxinfo, even nvidia drivers are properly installed, AFAIK)
Another thing is returning to desktop with linux (Ubuntu), How can i do that? I mean, the same as alt+tab in Windows, Ubuntu does not seem to support that, altho alt+tab works whenever not in OGL mode.