It is the March update your 360 is missing. Remember, you are playing a game released, AFTER MArch update, which is your GRAW and Blazing Angels, these games works flawlessly after the update. Grab the update first and then see what happens.

It is highly unlikely that your 360 is heating up or HDD messing up. An overheating 360 would just simply shuts down, at either the console or the power brick (red light at the brick). HDD crashing would incur the 3 Rings of Light with Error Code Exx. The other suspect would be your internet connection. Are they wired or wireless? I had occasions where i was taxing the line at home with moving stuff back and forth through the same line and the 360 just simply refuses to register any of my button presses.

IMO, it would either be your 360 is not updated, or the your internet line connection. I once suspected power surges/fluctuations to be the culprit to my HDD woes (im running everything , the DLP TV, the home theatre setup, 3 gaming rigs, and with my other consoles through very few power outlet, and im getting spikes on the AVR/UPS LCD readout), that was not EXCLUSIVELY the problem....

There's your culprit. The games released AFTER the MARCH update will require you to download these via Live update before they play flawlessly on your 360. Having an internet line is a prerequisite for a 360, not just for online sake, but to download updates to run the latest games.

I have yet to finish Kameo, just defeated Corallis jer....classic case of too many games, too little time.

Added/accepted you as a Friend already bro Cylon,...now all that is missing is a machine to play all your games.

The more Friends, the more victims....errr...i mean, the merrier! No problem dude!