When I play a game on my PC, I sometimes hear the PC speaker emit two beeps. Nothing else happens, but why would it beep ONLY when I'm playing a game? In case this matters, I overclock my video card, and my CPU temperatures stay in the upper 40s during full load, lower 40s when idle.

Also, in some games the sound just stops after a while. Of course, this only happens in burned, cracked, or downloaded titles. The "legitimate" games don't have such problems. Are burned games supposed to be so glitchy?