hmm, well, if all your drivers (xfi and motherboard) and ram are good, then i would maybe search google for someone with similar hardware and a simliar problem.
I need to get some new rams since 2gb is starting to become lackluster...will bump it to 4gb even though I'm on 32-bit.
Tried to search for that someone to nada, been doing that since last year and gave up.
Try pulling up your task manager (ctrl-shift-esc in vista), and observe the cpu usage and memory when you scroll/play music. Or maybe some other program is eating up your resources. What media player are you using? Have you tried different media player software? foobar2000 is a good low-resource audio player. If it happens when you scroll, most likely the problem is insufficient resources (which is strange because your setup should be more than enough to play music and scroll through windows.)
Ok this is the funny part. I had foobar2k since I bought the comp, and it's configured in the way that it will play music SMOOTHLY, without any of the statics. That's the only GOOD part that I can think of of the situation...I'm using ASIO...configured that like a year ago...forgot from where. Other than that, VLC and WMP will have that kind of weird static.
Yeah my system should be more than sufficient, but if fb2k dun have that problem with that ASIO configuration, I have no idea why.
P.S. ^ Chair above looks very comfy...