This is just a warning to anyone thinking about using Offline files in Windows Vista together with a NAS device. The Offline files feature is activated by default on all folders which you redirect when using Folder Redirection. The problem is that the Offline files feature is not supported by all NAS devices out there.
The Windows Storage Team posted a blog notice about this more than a year ago but this is worth mentioning again. Although they provide a solution for NAS devices using Samba (which many does) there is no guarantee at all that the NAS device has the correct version of Samba or even support making the necessary changes.