Users on Win7 Clients intermittently loose connection to home folder

Dracula28

My environment consists of 2003/2008R2 DCs, and Win7 Client machines, and a 2008R2 filesever which holds the shared folder for users' home folders. DFL/FFL is 2003.

Sometimes, I have this strange occurence where users loose connection to their home folder. They can connect to other folders on the same server just fine, but can not connect to their home folder. The home folder is connected to a user specific folder, under a shared folder (\\fileserver\users$\username). This is defined in the user object in AD. All other network drives are connected through GPO preferences.

Three folders have been redirected to the users' home folder, My Documents, Desktop and Favorites, through GPO.

Its different users each time, and only a restart of the client fixes the issue.

Anyone ever experienced this issue?