I have 2 computers, one at my college and another at my home. The comp. at school didn't have a full version of Office, only a trial. When the trial ran out I bought and used my Office 2003 CD to install full version. When I went back home I decided to clear out my home computer and by re-installing windows Xp and wiping everything out since I didn't need the old files. I just recently found out that I can no longer use the product key from my Office 2003 CD since I put it on my school computer. After finding out this I tried to just completely remove Office 2003 from my home computer since I can't use it without another product key, but my system just restarts when attempt to remove it. (Control Panel, add/remove programs). What do I do???