Problem starting campaign

[Cup Cake Bunny]

Hello im having problem to lunch a campaign, when i try to start a new one it loads for 1 sec then puts me back to menu. I can to custom battle but not campaign. I have reinstalld it and same problem. I use vista and maby thats the problem.

[bɑne]

As you are using Vista, you might experience UAC problems - this forum topic explains how to fix this problem: http://www.twcenter.net/forums/showthread.php?p=8287059