I have the Cingular Treo 650 and cannot Hotsync with the Sony Vaio. On the first install of Hotsync it works fine. After that nothing happens. I have tried:
-uninstalling and reinstalling the software
-soft reset
-hard reset
-Purchased the Cradle (Staples $49.99)
-reset to serial connection per the PalmOne trouble shooting guide on line
-direct USB 2.0
-USB 2.0 hub

In short, I have exhausted everything I can think of or find on the internet.
Please help.