I've been playing for hours and I was showing around 80% through, but now when I boot it up it just hangs on the 'Fez uses an autosave function' screen, with the spinning red cube.
Eventually a get a network prompt saying I'm not connected (lies!) to which after say 5-10 minutes it'll load the main title screen, but hitting X from there just goes to the space background with no menu or sound.
I've been googling and found a load of stuff about older patches that took a while to come to Xbox, but aside from one forum post on another site that got lost amongst the shuffle, I can't find anyone who has the same problem as me!!
Any help is greatly appreciated, thank you!! :D