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I'll do that .. I think I have a good (pre XP) copy of Norton Utilities somewhere .. or maybe the dell website has a utility.
You should be able to download the Dell diagnostics from their website. www.support.dell.com. Use the Service Tag from yoru machine and pick your operating system from the drop down. Scroll through the list of drivers until you find the diagnostics program.
Also you can try running the system file checker. It will replace corrupted operating system files with good copies if it can find them.
I’m Dell certified, I’ll e-mail you offline.