Hey, Ive just installed ubuntu 8.04 on my amd athlon 1600+,

when I boot up the computer I get this error:

booting from local disk...
isolinux: Disk error AA, AX = 0201, drive 80

boot failed: press a key to retry...

Ive tried to google etc, but havent found anything useful,

Thanks for helping.

btw: old ubuntu worked just fine, same disks etc