We're testing the DM355EVM with 2.6.10_mvl401 and related root target. We have X window running out the TV out jack into a DVR with a VGA display. I'm compiling some test apps using GTK+, which is already installed on the target. I have a simple app that updates 4 widget labels every second. When I run this on the DM355EVM, the video flickers during every update. If I run this app on my desktop machine it works OK. I made sure that double buffering is enabled in the GTK+ widgets to avoid this type of problem. I guess this must have something to do with the frame buffer/X windows handling. I checked the kernel and can't see anything that might relate to this. The Davinci Frame buffer must be enabled along with V4LINUX etc Any ideas ?