Windows 2008 R2 - event ID 2012 VS Windows XP redirect folder

We have Windows XP SP3 Client, who access a Windows 2008 R2 Enterprise file server.  We also use the folder redirection for the home directory of the users.

Some client have the error "Windows - Delayed Write Failed" with a reference to the path of the file server [\\server\share\%username\].  At the same time, we have a lot of warning, event ID 2012, on the server.

Could you help me ?

Thanks

Stephane