I wonder if the Corel still has something in your computers registry files and that is causing the troubles.

there are registry cleaners out there - but I suggest finding someone that can help you use one.
one time I changed too many settings and cleaned too much I think LOL.

Or maybe someone here can suggest a simple and foolproof one.

I decided to do a search here's some info to read about registry cleaners-
http://www.informationweek.com/showA...leID=171203805
http://registry-cleaners.6starreviews.com/