My company has recently been encountering an issue where files in shared directories on the Windows 2008 server are apparently becoming corrupt. When this occurs, the XP workstation that is trying to open the shared directory will lock up for a couple of minutes and then return a message stating that the network location is inacessible. When I open the directory locally from the server, I am able to view all of the files but there will be one file that cannot be opened, copied, or have it's properties displayed. When I do attempt to perform one of these operations, it causes the server to lock up.
This has happened to multiple different files types that have been accessed by several different employees, from different machines. Further, we are running Symantec Endpoint 11 on the server and workstations, and run regular scans that all come back clean. We have a regular backup schedule, so all is not lost when this happens, but it is causing lost productivity and duplicated work.