I run MPEG Streamclip on my Snow Leopard installation all the time. But a colleague has asked me to install the latest version v1.9.2 on his 2013 MBP Mountain Lion. It runs, but the timeline under the video is skewed on any video codec. The start/end point can be mid-way instead of at the start/end, and the pointer can't be placed accurately to move the video through the minutes and seconds. If you resize the window, the timebar moves around in an unstable fashion. Has anyone seen this behaviour and know how to fix it or avoid it? Thank you.