Last time I performed an upgrade to unity I got on the forum and did alot of swearing at the developers, now I upgraded to 12.04, other than my volume control missing, I have to say it was smooth. I was sitting here sweeting when my computer rebooted wondering how many weeks it would take to fix everthing that was messed up, and only found my volume control missing! So I just wana say I'm sorry to the developers for being such an *** in the past and hope in the future upgrades go so smoothly.
Dave