Found the problem. In the clean Install of XP Pro the video drives, and some
others were not installed. Thus, my adaptive programs would not work. HP
sent me the links to the drivers, after the ZT tech phoned them, and HP
phoned me in turn. I'll buy an HP a second time, I can tell you that. MS
Techs phoned too, when they found out the system wasn't up and running.
Sigh. All's well, that ends well. It was miserable trying to "compute" w/o
vision, though. Thanks, all...if you get a DCM error, look into the program
it popped up when it was started. I found lots of "DCM" urls, but none
pertinent...until... Thank you all, again.