Ok, this does not happen to me often. But when it does it's annoying. It happens both in bootcamp and in OSX. Not running any intensive programs and it just freezes. Everything becomes unresponsive and if i'm playing music, the music will have a looping sound. Have to do a hard reset everytime. I don't think it's a RAM issue because it did hang with the stock RAMs. My warranty is expiring in a few weeks time, and if this is a issue i want to get it checked out. So what are u guys take on this ? Using a Oct 2008 macbook pro.