I am hoping someone can help. Recently our users have been complaining about excel files being corrupted. They work on the file, save without errors, and later try to access the file and get "unable to read" file error. It appears to have started after we installed Windows xp sp3. Initially it was only a few users, but now we have many people complaining of the issue with some having to salvage the same file multiple times. We are running 4.91 sp4 on the client. The servers are running various sps. Netware 6.5 sp2, sp5, sp6. We even have one oldy running nw 6.0 sp5. Any ideas would be appreciated.