I get similar errors (though it just goes back to desktop or freezes) if i make my resoultion to big for my monitor.(It's allways by mistake,to)....But since you reinstalled,this can't be the case =/
this has happened to me a couple times, if it freezes, i just turn the computer off, or if ctrl+alt+del works i use that, then if i get back to desktop i restart my computer. try that, it may or may not work. it reall has only happened to me a couple times so im not totally sure..
you bought the game correct?