I'm also getting the same error. It says "unable to start timeshifting. no audio/video detected". I usually have to restart mediaportal to get rid of the error. But as soon as I change channels I get this error. Oh and whenever I do get to watch a channel...in the menu when you press enter...it says timeshifting beside the channel. Should it be saying that even tho I'm not even trying to use this timeshifting thing. Argh...I wish you could disable this timeshifting crap altogether.
Finland