Comment 6 for bug 146536

Confirmed on Gutsy (was originally installed during Tribe 1 times) AMD64

Could not calculate the upgrade

A unresolvable problem occurred while calculating the upgrade.

Please report this bug against the 'update-manager' package and include the following error message:
'E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages.'

I was offered a partial upgrade this morning, ran it, computer was fine since then (through reboots even). Just got the update notification again, now this error.