No devices detected during install, so can't repartition (or install for that matter)

[Pajot10]

I'm attempting to install Ubuntu for the first time, and so I get to step 4 where you're supposed to manage your partitions and there is nothing there.

I've tried a few times now, modified a few things in BIOS, and nothing ever shows up, it's just an empty table.

When I exit the install and Ubuntu runs, if I go to gparted I get the same problem: it apparently can't find any devices.

Here's my system:
E8400
Abit IP35 Pro
4GB RAM
8800GS
Seagate 320GB SATA

I only have that one Seagate drive, and it currently has 2 partitions: one for XP, and another for all my software and media.

I really have no clue why it wouldn't be able to detect the drive and the partitions.

Any ideas? I suppose I could use other software to repartition the drive, but would that even matter if my hard drive isn't even being detected?

[Pajot10]

A little more info...

I downloaded the CD installer (8.04) and verified with a checksum, burned it at 4X and verified the integrity of the disc, so there's nothing wrong with the CD.

Would getting the alternate desktop CD help?

I know looking through the documentation I was never given an option to choose manual or guided or anything like that... it just came to step 4 where it's supposed to show your partitions and since nothing shows up I can't do anything.

[Pajot10]

Anyone?

[Pumalite]

Is your system 64 bit?

[Pajot10]

My XP is 32-bit, my processor is 64-bit, and I'm using the 64-bit Ubuntu media

[Pumalite]

Burn a new CD. Clean the lens in your burner.

[Pumalite]

If it doesn't work; try editing the boot line and adding all_generic_ide at the end.