I have an older Samsung phone (an SPH I330) with a built in PDA using Palm OS. I've synched it with XP for years. It installs in a cradle and has a USB connection to the PC.
I got a new computer with Vista, and this phone will not sync. In Vista's Device Manager, there is an entry for "Palm OS Handheld Devices," with a sub entry for a "Samsung Handheld," so it looks like there is some recognition of the device/cradle. Does anybody have an idea of what I should try to do? I've looked for new drivers to no avail.
Thanks in advance.
Dave DeFrain

Not sure if this will help you with a palm device but it helps with active sync/wmdc...
"I had all sorts of problems trying to figure out why my Del Axim X51V would not sync with Vista, either in the beta or the release version. This Sync problem was driving me nuts!
The problem for me was I decided to use the trial Windows Live One Care. That was automatically changing the status of the Windows Firewall.
To resolve, I removed Live Care's "Automatically change Firewall protection level..." AND I set the Windows Firewall to the Automatic (Recommended) setting. I also clicked on the Firewall conntection tool and under "Select the connections you want rhe Firewall Connection Tool to set up for you...: I checked the "ActiveSync/Windows Mobile Device Center".
The device was FINALLY recognised and Windows Mobile Device Center is now fully synced with my PDA." tabletquestions.com/pocket-pc-general/32794-windows-mobile-device-center-vista.html