Ubuntu 8.04 - all drives now SCSI

[Moniz Family]

I am putting together a older PC for my dear mother-in-law to replace 
her even older one, and just installed Ubuntu 8.04. Now all of the 
drives boot up as SCSI. The hard drive (hda) is SDA, the DVD (hdc) is 
now scd0. All sorts of problems have resulted from that little conversion.

I first installed Ubuntu 7.10 from the live CD. From the live CD, I did 
the partitioning with gparted (or is it qtparted?) and all was normal. 
Then I installed 7.10 from the CD and all drives were normal. During the 
updates, I noticed that 8.04LTS was available as an update, so I did it. 
Then I performed added some repositories, including medibuntu, and did 
whatever updates were noted. During some troubleshooting of DVD 
playback, I noticed that the drives were no longer IDE.

If I boot with the Ubuntu 7.10 live disk, the drives are IDE. Also, grub 
lists three kernels to boot from. The oldest (2.6.22-14 generic) still 
boots with IDE drives. The two newest kernels on the gub list (2.6.24-16 
& 2.6.24-17 generic) both boot with SCSI drives.

Does anyone know what could be causing this? I'd like to fix it as I've 
invested too much time to this stage of the install, but if I can't fix 
it, the next step will involve either Mandriva or FC.

Thanks for any tips.

John.
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