do you happen to have a hard drive somewhere? put windows on that and see if you get crashes from doing the same activities
it seems whenever you try to load something or when you exit something, the system crashes. it most likely isnt your card given a RMA should fix everything (i could be wrong here)
Not at the moment...I did have an issue once where when i tried to re-boot the computer back up a black screen with the message "Windows failed to boot" and everytime I restart the computer the screen is all glitchy and full of white lines and what not, so i have to re-boot it like 5 times before it is back to normal. Also always asks if I want to do a system repair...