WinXP Boot Camp Sound Volume Issue

Hello. Does anybody know if the WinXP - Boot Camp - Cirrus Audio issue has been resolved?

My new MBP has WinXP Home Ed installed. Initial problem was that the volume was very low even with max setting. There was also a 'red light' coming out of the audio jack like a laser pointing device. After some searching in forums, i found a fix wherein i manually changed the Cirrus driver setting (turning off the optics and re-calibrating the volume limit). However, this seems to be a short-term solution only, because there is still a faint crackling sound emanating from my internal speakers whenever i'm running Windows in BC. I'm running SL 10.6.

Feedback appreciated. Thanks.

i see. it's pretty clear that the Cirrus driver is the culprit, but i think it is Apple's responsibility to come out with an update / fix / statement regarding this issue. in addition to the annoying sound (like little insects scurrying inside the keyboard), i'm worried that it might damage the internal speakers in the long run.