At random when leaving a place (any) through loading doors. the screen goes black with a little hint of the environment on your tv but very black. my xbox then sounds like a helicopter trying to take off. i then have to hit the power button twice just for the damn thing to shut off. its extremely frustrating and i have over 300 saves because of it. as for everything else i've experienced.

Dragons disappearing into mountains never to be seen again.
Dragons landing upside down
Dragons not giving up their souls when defeated
Getting stuck in random parts of the environment
ugly pasty like textures

My game is not installed.

I know. I have a brand new 360. I replaced my old one due to problems like this. The game regularly freezes up and sometimes I can't even turn the system off to reboot. I'm sure Beth will fix problem- otherwise one of the best games ever made! Thankfully the autosave feature is robust enough to not screw me up completely!