Note that when installing the 1.2 patch, you need to ensure you have installed the game to a directory that has THQ\Company of Heroes\ in the path.
Good:
C:\games\THQ\Company of Heroes
C:\program files\THQ\Company of Heroes
C:\OMGGAMES\THQ\Company of Heroes
Bad:
C:\games\Company of Heroes
d:\COHLOL\Company of Heroes
Reference thread:
http://forums.relicnews.com/showthre...01#post1828001
