A couple of days ago, my Dell Latitude D520 (running Windows XP) displayed this message immediately upon startup on a grey background:
"The Device in the system modular bay cannot be identified. It may not be completely inserted or may have some other problem. Please read and complete the following steps in order:
1) Press the device completely and firmly into the bay.
2) Power off the system.
3) Press the power button to retry detecting the device.
Press ESC to ignore error and continue."
I pressed ESC, and upon booting into Windows, found that my DVD-ROM (Drive D:) was not listed at all under MyComputer. I removed the DVD drive from the modular bay and reinserted it, upon which the computer detected it, identified it, said "Your Hardware is Ready for Use", etc. With one major problem: the DVD drive is only in PIO transmission mode now--it will not go to DMA, which means DVDs produce stuttering, skipping, etc. The error message above is displayed upon startup every time now, so I must remove and reinsert the drive again in Windows, only to have it always default to PIO mode. System restore did nothing. Is the DVD-ROM drive failing? If so, I'll get a new one for about $50--this one came brand-new with the laptop, so I got my money's worth! First, I want to know whether this would in fact accomplish anything, whether there's not something going on with the mobo, etc. Is there any diagnostic test to find this out for certain? I can't think of any recent changes that could have caused this.