Have you installed the latest version of WMDC version 6.1:
http://www.microsoft.com/downloads/d...1-09f07aaa1914
Also, try resetting the device and sync again.
--
Andre
Blog:
http://adacosta.spaces.live.com
My Vista Quickstart Guide:
http://adacosta.spaces.live.com/blog...3DB!9709.entry
"Mason" <> wrote in message
news:ED85CB7A-4FA3-4C78-AFCC-...
> I'm using an HP iPAQ hx4700 running WM2003SE, and just "upgraded" my PC to
> Vista Ultimate 64-bit. About a third of the time, I can synchronize just
> fine using the Windows Mobile Device Center, but the rest of the time Sync
> Center is still reporting that it synced successfully, yet Calendar and
> Contacts have NOT been synced between the PDA and the desktop! I'm not
> getting any errors, and am seeing the little blue checkmark on the Sync
> icon.
> I've also doublechecked that Calendar and Contacts are indeed set to be
> synced in the WMDC. Yet they aren't actually being synced!
>
> Any help would be greatly appreciated.