strange problem. client has two servers. one server has several mappings to workstations via login scripts. a workstation with Vista at times during the day will attempt to explore the contents of a mapped drive or save a document to the drive, and gets an 'invalid handle' error on the drive. the other drives remain connected. when i browse the network with the workstation i can get to the server\vol\folder location without error. but only in the following format:


it is very reminiscent of the days of having two login scripts for NT and 98.

the login script works without error. only breaks later on after login. any ideas?