I seem to have broken some critical library bindings on my Ubuntu Studio set up by "upgrading" (and the quotes here do indicate a note of sarcasm) from Meerkat to Natty beta. The release version didn't fix what was botched. So, essentially, I have no way to run any app requiring GLX. Even glxinfo dies with a segment violation. Unity shrugs and drops me into classic mode automatically now too.
It's been 3 weeks, and I haven't found any suitable answers anywhere that will allow me to use this system the way I need to use it. So, I'm left with a final option - reinstall the system and see if it will work. (If not, I'll drop back to 10.10 until the world catches up again).
Question: is it possible to re-load the system from an .iso without having to also reformat/repartition the drive?