Hi Pete,
Thanks for your reply...
"I did run a cleaner through it. The unit is no more than a month old. I can get it to work in another PC. Just not this one."
But I'm still not clear whether it periodically works in your PC or only in another one?
If its only the other one, then have you tried uninstalling and re-installing the drivers in your PC? They can get corrupted.
It may also be worth your while swapping it to another IDE controller if thats an option.
Doublecheck thejumper settings on the drive. Depending on your configuration it should be correctly set to master (if on its own controller) or slave (if sharing a controller with your boot disk).
If you have access to any, check other CD writing software as well.
Does it always read CDs ok?
btw. I've subscribed to this question now, so if you add a comment, I'll be notified and take a look.
Cheers,
Tim.