I just installed GRFS and when I started the game, the screen flashed to black and "Invalid Format" flashes across the screen. I can't locate the options.xml file to change the res like i had to do with GRAW2. I'm not a programmer or anything fancy like that and it took me some time to figure that one out. I'm lost on this one, though. I checked the FAQs and searched for similar things but no luck. Sorry for being a DA. I have the dxdiag info info. Any help would be appreciated. Thanks in advance!!