Hi Richard, it took a while but now I had some time to try your new Source Snapshot. Alas, the tearing is still there so it doesn't seem to work. In order to make it run I opened a shell as root and compiled your snapshot. Then I executed 'export SDL_VIDEODRIVER=dga' and added 'gfx_vsync=true' to my .uaerc. After that I launched uae which showed the right CVS version after it came up, so it installed correctly. The DGA driver also seems to work since UAE immediately switched to fullscreen after I deselected the 'Pause' button, something he didn't do before. So I wonder what can be wrong. I doubt that it has something to do with my DGA, as XMAME is using it with VSYNC support. May be it is the SDL implementation of DGA, since XMAME has an own DGA driver as far as I know. However I'm not limited to DGA. Should I try another videodriver? I have a Matrox Millenium G400 videocard, which is old but quite good and should be able to run something else. CU Frank ___________________________________________________________ Telefonate ohne weitere Kosten vom PC zum PC: http://messenger.yahoo.de