I'm on a 5500 with a symbol/socket wlan CF and seem to be getting static when I use mplayer (or xmms-e) to listen to an mp3 stream. Actually, it's any wireless network traffic that causes the static -- if I listen to an mp3 file on my SD card and hit a web page with konqueror, i get the static.
Has anyone else noticed this? How about not noticed it, and if not: which wlan card are you using? I'm just wondering if it's the 5500 or the wan card.