A faction mate of mine is currently unable to get the game to run... at all.  It used to run perfectly but now it won't start up, even after several attempted re-installs.  I'm pretty sure I've heard of this problem before, but I didn't make note of any possible solution.

 

I don't have any system specs or details at the moment as it's not me that's having the problem, but any pointers or answers I can pass along would be great.