Why Does My Ps3 Freeze With A New Hd Why Does My PS3 Keep On Freezing?

Why does my PS3 keep on freezing? - why does my ps3 freeze with a new hd

I just connected my PS3 to my HDTV with an HDMI cable. Now that the NBA 2K9 game just freezes. I do not understand. I have a 80 GB and the last day I'm totally 100% secure. I have had this problem two weeks ago, then stopped but began again.