I haven't received ubuntu 8.04 disc yet
So I downloaded 8.04 beta and have been dinking with it a little. I'm not very experienced but I've gotten a ton of updates from support and it's been working reasonably well for a beta. This is on four year old amd athlon 64x machine. Don't have wireless. In China the wireless is worse than useless, just wastes a lot of time.
Have you gone to forums to get help or are you too proud?