Hi, I work for a large company, running a domain with approx 550 PC's. We are on an NT domain with a PDC and a BDC with 2003 servers for everything else. Recently our File server began creating temporary Excel files, the naming convention of which is [FILE NAME].xls~R[RANDOM NUMBER].tmp. Also, when we delete an .xls file it will remain there, but when you go into properties only the General tab exists and whenever you try to do anything to the file it comes up with either the file or the temporary file you get access denied. This affects random files rather than all the files. The server is also giving us a BSOD at least once a day. This is only during normal office hours when people are connected to it. We are getting one of the folowing 4 stop error messages when this happens: 0x24, 0x50, 0x7e or 0x8e. We have done extensive research into all 4 error messages and none of the solutions provided by Microsoft or other forums have worked. After the raid array finally failed on our main file server (a Dell Poweredge 2850) we got a second server (a Dell Poweredge 850), stuck 4GB of ram and 2x 500GB HDD's in there and did a full file restore to the temp file server. After 5 days this server then also crashed and is suffering the same problems. All our servers are running SP2 and are fully patched with our WSUS server. We have been down numerous routes over the last two weeks to try and solve this but around 50 people so far have drawn a blank. Anybody seen a similar problem, or more importantly, a solution? A point in the right direction as to whats causing this would be helpfull.