Thanks for your suggestions. I tried everything you mention but no luck. This problem appeared recently-about 15 days ago. Before that, everything worked just fine. Please if you come up with any solution, post.
Thanks again.
EDIT-Well, all I had to do is restore the IP archive version 3.20a(rc)033 from sdc and now everything works just fine. I have XP Pro SP2 installed. Of course, this is a temporary solution to the problem. I hope the people at Stardock will have fixed this when the final version is released.