after i updated my ps3 to 2.8 and i played the beta online where you can meet people like sims, it started to freeze. i watched movie for an hour then it froze and the other day i was playing gta4, it froze too..

i was thinking the cause of freezing is when i was playying the beta games in ps3 online and it hung. i closed my ps3 by holding the power button(not the back power)..

also it overheats..

whats the reason of this freezing? this is the second time happened to me..