This can sometimes be a problem with the Master Boot Record (MRB).
Different manufacturers have different ways to fix this, though.
Usually, there is a tool on the original restore disk that will fix it.
I'm not sure if there's another way to fix it, though.

   Tom


"John H. Miller" wrote:
>
> I have had people bring me 1 or 2 computers that had this problem (CD
> disappeared) and I was able to resolve it by purchasing an IDE
> Controller card like the Promise PCI Ultra 100 and then I moved the the
> cd drive over from the motherboards IDE controller  to the PCI IDE
> controller card.
>
> I have used this card for new computers that I put together too and
> their is a dramatic increase in the speed of the hard disk drive.
> Before using it, I was copying a 640 megabyte file into a folder on the
> same disk drive and it took 2 1/2 minutes and after installing the
> Promise IDE controller it was about 1 1/2 minutes.
>
> I did run into some problems one time with moving an existing hard disk
> drive from the IDE Controller on the motherboard to the the Promise IDE
> controller and I lost all the data on the drive so make sure that if you
> are moving an existing hard disk drive that you back it up first!  Just
> in case you run into problems!
>
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