After hours and hours of Full Auto 2 last night, I had my first hiccup. All of a sudden the screen froze and a loud noise came from the PS3. At first I thought it was coming from the BD drive, but then it sounded like it was coming from the fan. I believe those are the only parts that make noise? Anyways it sounded like the fan all of a sudden had a bad bearing, and I was hearing the screach of the bearing or the fan blades hitting something. I don't know how else to describe it.Anyways it was a hiccup, in that it went away after 30 seconds, and rebooting fixed the screen freezing. Played another 2 hours without a problem, but now I am paranoid. Any thoughts? The red light never came on, so it wasn't overheated, and did not feel abnormally hot.