Did this machine come with or did you make recovery disc?
If so you might be able to boot from that source and get to the Dell diags.
My original problem is not able to boot into Windows XP. I have never had the problem before and I have not changed or added any hardware or software recently. The Dell Manual recommended a Diagnostics to be ran. I can get to the "Boot Menu" and I can highlight the "Boot to Untility Partition" but when I select it nothing happens.
I have a DELL Dimensions 9200 desktop