Torsten Bronger wrote: > (The monitor is a TV set, which becomes dark every time > dispcal changes some settings -- and just before thet first patch, > there is such a "blackout".) You need to figure out why it is doing that. dispcal doesn't change "settings", it simply presents color patches, so why is the TV turning its backlight off when there is other stuff on the screen that should be displayed along side the dispcal test window ? Graeme Gill.