CONSTANT timed stutter with either sound OR audio?

[Kaiju]

I was getting a stutter with my rig on a consistant basis, i can describe it like the sound skips/shakes for a brief second. Anyway i decided to do some tests and i found out the following.

When not moving my mouse or moving it (even unplugging it), the results are still the same. I thought it maybe my Razer Copperhead but alas after messing with polling/dpi rates i concluded it wasn't.

Basically after every minute/second the skip/shake occured in either Winamp (sound) or VLC Player (video).

Min(s).Sec(s)
37.24
38.28
39.42
40.36
41.40
42.44
43.48

As you can see the skip/shake occurs after every 60 seconds+ 4seconds?

What the... can anyone give me a clue as to what this could be as i'm pretty stumped?

 

[Devlish]

One possibility PCI Latency? http://forums.tweakguides.com/archive/index.php/t-1529.html

*nevermind youre using PCI-E, dont think this applies.

 

[Kaiju]

I've never had this problem with my other machine and am miles from an airport or airfield, so it's not interference. I'm using on-board Realtec '97 at the moment, but that was because i thought it was a conflicting issue with my M-Audio 24/96 soundcard and an IRQ with my GPU. It gets even more complicated as my GPU cooler houses over another PCI slot, so i only have 2x PCI slots left. I tried both, but alas the same problem sharing an IRQ or not.

Any more thoughts on the matter? I'm seriously stumped. I've also tried lowering PCI latency times with my M-Audio soundcard too, but still the same issue.

edit: This is what i have to change just for reference.
PCI Latency Sets

1.) Gonna try Realtek sound driver opposed to nVidia 4.62 driver.
2.) Gonna try M-Audio again.