Anytime a user attempts to open control panel, it causes explorer.exe to restart. Looking at event logs I see an event when this happens:
Event ID: 1002
The shell stopped unexpectedly and Explorer.exe was restarted.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp
This does not happen to domain admins on the computer either locally or through TS. It only happens to domain users.