It just happened tonight. I put in Rayman which I recently acquired and thought looked like a fun game. It froze once, then twice. Then I tried Bullet Witch and it froze. I restarted the system and got the rings of death. I felt like I was lucky that the system hadn't died yet but I knew it would eventually. Oh well, at least the kid from Microsoft spoke English and was helpful.
BOO HOO!
On the bright side it will give me a chance to catch upwith my PS2 collectionand original xbox. I won't feel like I'm missing out on achievement points.