I have a multiuser clipper app which runs fine on 100's of Novell servers with Windows 95/98 Clients, however the same App running on an NT 4.0 server with Windows 95/98 Clients, very occasionaly reports DOS Error 5 Corruption detected. the file is not corrupted and the user can quit out of the program, go back into the app and all is fine. This happens on 3 sites all with NT4.0 running NTFS. I have tried running it on a FAT32 partition but get the same error.