Trouble with MS office please help!!!!!

hi i just brought ms office 2007, when i installed it everything seemed to go fine but now every time i turn on one of its programs it says it must configure ms office which can take up to 15 minutes. i have searched this problem on google but the only solutions are either reinstalling it or going in to the registry which i don't want to do, when i installed the program i was logged on as an administrator which on some sites said that not being an admin could cause problems. please help!!! PS it was not an upgrade pack it was a full version with three users. thanks