Up until recently I didn't have any force re-boots, although I do turn the machine off when not in use.
Its almost as if Ubuntu have slipped up when it comes to maintaining the software tree. A few times I have installed something (from the software centre) only to find it can't run because a dependency hasn't been installed or configured correctly. More or less defeats the point of an LTS release.
Been having a bit of a look around for details on Mate desktop.. Looks quite promising! :)