i agree with you minsc tearfall i have found the same issue in only the last week, i have a shoutcast stream and use winamp and have had no problems up till now. my url works fine in a browser pasted in or through my phone browser, and now the same url unchanged will not work when its places in the sound option on land, all i get is silence now.
i have contacted wavestream who i get my stream from and they have confirmed that there is no issues at their end, friends can also hear it when pasting it to a browser. wavestream say the fault must be with second life, i have just sent a ticket to LL, but as yet no repsponce to it ((