I posted this issue on the Dell community forum and got this response today from someone named Rod. What is your opinion...could this work?
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Run BIOS setup and change the hard drive setting from RAID to RAID Autodetect/ATA. It shouldn't ask you for the RAID drivers again and should allow the install to run.
E510 BIOS settings
<> If you haven't already reformatted the hard drive, have you rebooted and gone to F8 menu and tried "last known good"?
And if you haven't already reformatted, there's still the option of a Repair/Reinstall which will only reinstall XP but shouldn't affect personal files or the software you installed. And if you haven't reformatted, you could run PC Restore which will reset the hard drive to exactly the way Dell shipped it with XP, drivers, and all preinstalled software. Your personal stuff will be lost after PC Restore.
Ron