DW1625 periodically missing at startup (BenQ DVD RW DW1625 black Lightscribe)

[qanda]This thread is about the BenQ DW1625. Click here to see full specs[/qanda]Hi all,

I have a DW1625 that has performed respectably for several years. Recently, though, it occasionally does not appear at startup, I get the dreaded “Drive 5 not found: Parallel ATA, PATA-1, (Pri IDE slave)”. It SEEMS to be related to having a DVD-RW in the drive, but I’m not sure, and I was always able to boot with a DVD-RW in that drive before. Power and IDE cables are tight, the only recent change I can think of that might have an impact is installing ConvertXtoDVD, though I’m not sure how that would have any impact. Any other suggestions? Could it be that 2 years is the life of this drive?

TIA for any help.