I've been using 10.04LTS 64bit since release and it's given zero
problems - everything works and it's rock stable :-) I'll be checking
out 12.04LTS of course when it's released and switching to that with a
clean install with all that entails - worth it as far as I'm concerned
for the subsequent stability and lack of problems that upgrades can
cause. Been there, got the T-Shirt .

PW> When I first installed Ubuntu 64 on this thing there were some
PW> problems. I think that was release 9.