Hi guys, I get this error msg sometimes simply by playing recorded videos and restarting the client solves it. Because I had different other issues as well, I did a clean install of v1.2.3 - after having uninstalled server & client completely + LAV filters. Now I'm running MP almost with default settings and no plugins because I decided to gradually add things to prevent getting problems, but I got the error again. Is it not so that W7 doesn't need extra codecs for this and what makes it so that most of the times recordings are playing without any problems except those rare moments? TIA P.