Offline File Synchronization errors-make them stop telling me about them!

Hello Forum Users,
We are having a problem here at work. We have folder redirection and all that good stuff. For some reason when we Synchronize offline files, windows is reporting that .pst files are not allowed to be made available offline. We do not want .pst files to be made available offline, we just want windows to stop telling us the .pst file cannot be made available offline.
Thanks,
Todd