Anybody else use iPlayer Downloads? I've noticed frames being dropped, jerky playback and occasional audio clicks and pops. I've submitted the problem to the BBC and they've been active in looking into it, but haven't actually tested on a 1.1 GHz rMB, which is what I have. Streaming from the iPlayer website is fine, as is playback of movies downloaded from iTunes, so I think it is something specific to iPlayer Downloads.