I am having a problem with one of the clients PC's at the company I work for. I have never seen this before an its mind boggling. We are running Win XP pro on Lenovo T400's and every time we try to open excel 2007 it keeps trying to reinstall its self or it will only boot into safe mode. I have done a virus scan, office diagnostic, office repair, and I even uninstalled and re-installed excel but before I reinstalled it I ripped everything out of the registry that had to do with Excel and upon the re-install it is still doing the same thing. I have tried several office commands and nothing seems to work. I am very curious to see if anyone knows a fix for this cause I am about ready to beat it with a hammer.