I've beat the Single player Campaigns on Veteran, and now I decided I want to play again. Just recently, before this decision I installed a few mods. Suddenly whenever I load, start, or touch a single player Game about 25% through the level loading process I get this error message. Pak sum/name mismatch Of course I immediatly took out the Mods, but this same error kept appearing. I'm guessing that it looks like I put something in the wrong folder and/or I replaced something by mistake. But I have no idea what, could somebody help me?