Thanks for the replies. Since posting my original note, I've checked with Palm, which says the Desktop is not compatible with XP Media. Every time I set it up, it opens, only to shut down. No one has given any advice as to what the glitch might be. I've been using Palm Desktop for years - as long as it has been around - and I've never had a problem. I've set it up on XP Home at home and XP Pro at work.
I would like some info on the possible reason for the problem. I'll check the forums suggested, but I've already checked rabroad, and someone there said to give up on using PD with XP Media. I've decided to use Agendus instead, but I'd still like to get to the bottom of what's happening. I wonder if it's something simple that I'm missing. Thanks for your time...