When I try to do a distribution upgrade, my mouse and keyboard completely stop responding, if I plug them back in, they continue to not respond.
I really REALLY recommend to not do a distribution upgrade. you would need to download from each distribution upgrade than just download 11.04 and doing a backup before starting fresh. This is, assuming you wan to upgrade from 9.04 -> 9.10 -> 10.04 -> 10.10 -> 11.04
We are talking more than 1GB of download of distribution upgrades comparing it to downloading the 700MB Ubuntu 11.04 and doing the backup and installing it fresh (And feeling you PC as new as ever...and happy too)