Here's what I can and can't do: I can get Napster to work fine for streaming playback only, but streams do stutter sometimes and have to be restarted. I can't get 'rental' downloads to work (Error 1006 = License server error). I can re-download tracks I've purchased. I can't get MTP data transfer (MTP device connects fine, and song transfer seems to cause BSOD/reboot) to portables. I have the same results in both the full Napster client as well as the Napster plugin for WMP10. I had good hopes for getting it working but alas it's useless as it stands at the moment. Anyone had better luck?