I was having a problem with usirius and codec errors on my PC.I'm streaming on my curve 8330 without any problems now. May be related to the new lineup of channels at sirius since the merger with xm. I went into usirius, stopped the stream, deleted and reset the lineup cache. restarted the stream and now the urls worked perfectly.(BTW I found these instructions on another site but was not allowed to post the link because I'm a new member)
