So after running numerous versions of Ubuntu on my old Athlon 800 Mhz box, I decided to snag a $500 Dell Inspiron loaded with Ubuntu 7.10.
I wondered "Why not version 8.04". So I merrily went about the process of upgrading 7.10 to 8.04. The result of numerous attempts at upgrading online, from CD (iso download), liveDVD only resulted resulted in a screen full of script reporting "items" frozen.
Dell doesn't support the 8.04 upgrade.
I found this out by calling ubuntu tech support who informed me the present solution is to contact Canonical to take care of this matter.
Here is the [ D E L L ] Ubuntu Linux tech support phone number.
Please, call 'em and give 'em hell for draggin' their feet!