Still have your old version?
Sounds like maybe something wonky happened with your latest-copied iso of 8.10. Was it a new install process or a simple upgrade process? The complete new install route is usually less risky. One of the nice learning features of Ubuntu (and I'm not speaking from the standpoint of being a 10 yr vet) is, that with the somewhat regular version upgrades to the operating system, it soon becomes much less daunting to just dump everything, while saving your personal stuff and just reload everything. It hardly takes any time at all. If you have the excess drive capacity to keep your old Ubuntu system still operating, this is good insurance, that three weeks down the road you won't find you've deleted something you had forgotten about. Sounds to me like something in your OS is confused if its mistaking your /home dir for your media progs. I defer to those wiser, but I think you're probably better off just reloading the OS and starting from scratch, as it appears you've just loaded it in the last short while anyway. Cheers.