Okay at first I thought this was an overheating problem, now I'm convinced it's the motherboard. This was mentioned in the thread about spontaneous rebooting but I figured it warranted its own thread. My computer (XP 1600+, ASUS A7A266 board) has a habit of freezing up, with the sound looping, after a while of playing games. it used to do it whenever i was doing anything that generates much heat, like watching videos, playing games, or even burning CDs. The CPU was in the high 60s C when this was happening. I went out and bought some thermal paste and the CPU temp dropped by 10 C. Problem solved, right? Nope! Now, when I'm playing a game (GTA3 specifically), the same thing happens. It happens only when I have the side of the case on so it's a couple degrees hotter than with it off - up to 54 C or so, which is well under what the computer idled at before I put the thermal paste on! The CPU's now sitting at 52 C. So, can anyone verify that this is a motherboard issue? Thanks!