I'm currently having trouble with sound lag on FRAPS, using version 3.4.6, the same as I had on my old PC. My old PC had Dual Core Processor @2.5GHz with 8GB RAM and ATI 5570. My new computer specs are: 6 Core CPU @3.3GHz, 8GB RAM and ATI 6850. So it's clearly better. FRAPS worked absolutely fine on my old PC, no trouble at all, but on the new one, I'm having really bad trouble with sound lag. I'm using exactly the same settings as I had on the old PC, 30fps, full size, using the same monitor. Does anyone know what they think the problem might be. I'm using it to record BF3 if anyone is wondering, and at times FRAPS seems to ignore the 30FPS and record at 60 or 120. I've tried with lock framerate but that didn't help either.

Thanks in advance to anyone who can/tries to help