Here is something that I found on the EA Forum regarding the freezing. Someone posted this today. I have not gone through the IQ Test yet and may not after reading this:
http://forums.ea.com/mboards/thread.jspa?threadID=409899&start=375&tstart=0
"OK, I got a weird thing I want to ask everyone. When I first started playing the game, I was in the IQ Test and it froze on me. So after restarting the system, it comes back up asking about the Madden IQ test again, which I skipped and went into the menu items to look at Roster and Depth Chart - where it promptly froze again.
Now after restarting again, the IQ test came up again and this time I chose to not have it prompt me again (can't remember the exact phrasing, but there was an option to not take the IQ test and to have it not remind me). So after choosing this option, I was able to create a franchise, roster, save everything and have played through 5 or 6 games (not all at once) without the system freezing at all. I am using a 360 and have purchased the standard Madden09.
So my question to you all to try is clearing all the 09 game stuff off your HD, starting the game, skipping the IQ test and then trying to play? Does that work at all? Anyone tried it?
If that does work, EA - the IQ test is the problem. "