I'm a happy camper now. I found the reason that my Zaurus 5500 would no longer sync with Outlook. Norton Anti-Virus added Internet Worm Protection and that stopped the syncronization in its tracks, even though the Zaurus was communicating just fine with my desktop. When I turned off Internet Worm Protection, I was able to sync as before with no problems. Now, I just disable Internet Worm Protection for the time I need to sync and I'm back in business. Before I found the solution, I was 10 minutes away from either giving my Zaurus away or putting it on ebay.