Sync Problem

[rehco]

When I sync with Outlook (ctrl+F5) everything syncs ok and if I add a task, appt, contact, etc to UR and sync it shows in Outlook but if I delete a task, appt, etc either in Outlook or UR syncing does not make the change.
This was a problem under XP and now also running Vista 64-bit Ultimate.
Any suggestions?

Regards,

Bob H.