CastleLink on Windows XP will not Open

[ksb51rl]

Has anybody experienced a successful install (meaning no errors) of CastleLink on Windows XP, even down to creation of the shortcut icon, but not been able to get the program to actually start? It has to be a software conflict somewhere, but I don't know with what. And please, I'm an experienced PC and MM user, and have done all the suggested fixes on Castle's site, so those suggestion while always welcome may not be all that helpful. Thanks a bunch.