This might be a silly question, but are you trying to play the same video every time? I once had an issue where I thought I had a problem with my code but it turned out that the video I was trying to play (and had played successfully dozens of times) had become corrupt. Just sayin ... <div class="gmail_quote">On Wed, Oct 3, 2012 at 7:16 AM, Ralph <<a href="mailto:ralph.gucwa@racelogic.co.uk" target="_blank">ralph.gucwa@racelogic.co.uk</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> I have a Windows WPF C# application using C# Bindings and OSSBuild (GStreamer WinBuilds v0.10.7, Beta 04). It works like a charm, but yesterday when my colleague was using it on his machine, he suddenly lost the video - when a new XOverlay was created to display a new video file, suddenly all rectangles displaying video became black. The weird thing is that the change is permanent - restarting the system, uninstalling the software and even running standalone debug versions didn't help. I ran a version creating log files and I can see that GStreamer loads video files and plays them without any problems. Everything looks normal, but still no video on the screen. I tried using both dshowvideosink and d3dvideosink with no results. It seems like something is broken in the operating system, but I cannot imagine what could change so suddenly. There were no system updates and no software updates installed, all software was used exactly the same way as two days ago and two weeks ago. Has anyone witness anything like that? -- View this message in context: <a href="http://gstreamer-devel.966125.n4.nabble.com/Video-suddenly-lost-tp4656442.html" target="_blank">http://gstreamer-devel.966125.n4.nabble.com/Video-suddenly-lost-tp4656442.html</a> Sent from the GStreamer-devel mailing list archive at Nabble.com. _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel" target="_blank">http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a> </blockquote></div> <div> </div>-- Duff