Found the answer at xda
1. Download any program TASK Manager/Resco Explorer/Memaid etc.
2. Find the NOTIFICATIONS menu (or Notified Programs).
3. Find <repllog.exe> it will have several types listed. Find the one that says<AppRunAfterTimeChange>
4. Highlight and Delete only this file and not the other two. The only time Activesync should start now is when you sync to your PC.