Hello, I'm a owner of RIVA 128ZX, which makes me big trouble... So I'm using mplayer with vo_svga, which is slower than vo_vesa but vo_vesa didnt have the refresh rate support. In the middle of movie (60Hz sucks) I decided to write the support for refresh control into vo_vesa driver. I grabbed the gtfcalc from svgalib na quickly hacked together with that driver. It is from Sci-tech but the licence is compatible with GPL (hope so) The patch against CVS 20020322 is at http://ruik.sh.cvut.cz/patch.vesa It supports doublescan and nothing else now. The refresh value is hardcoded. I know this is bad but maybe you should have some Ideas how to implement the options - also for monitor limits. The patch itself is quick hack to make it work together I'm not considering you will use it but maybe we can discuss what it should support etc... regards Rudolf PS: mplayer is very good thing - thank you