[Google-Desktop] Problem with Web Clips on XP after deploying GDS 2.0 via GPO

I just deployed Google Desktop Enterprise with the Administrative
Template to a test environment of my organization. The managed software
gets installed properly by the clients, but when a user logs in the
first time after the sofware is installed he gets this error 3 times:

Web Clips
Web Clips could not load a required resource. Restarting the sidebar
may resolve the issue.
[OK]

Is it possible to force the install to leave out or block the Web Clips
or the sidebar alltogether without repackaging the MSI?

Any suggestions would be greatly appreciated.