Yes I think the virtual monitor is a bit special. I cannot go into the properties of the monitor, neither see it in the device manager. I tried to install a fake monitor, but I couldnt see that option in the "add/remove devices" in the control panel. Result of the command : C:\Argyll_V1.0.1\bin>dispcal -D MonitorEnumProc() called with hMonitor = 0x10001 MonitorEnumProc() set initial monitor info: 0,0 1916,1049 name '\\.\DISPLAY1' get_displays about to get monitor information for 0 EnumDisplayDevices failed on '\\.\DISPLAY1' Mon = 0 dispcal: Error - Unable to open the default display Olivier M. 2008/7/19 Graeme Gill <graeme@xxxxxxxxxxxxx>: > Olivier Marchetta wrote: > >> Then I wanted to calibrate my monitor from VMWare, everything is detected >> (my Spyder) but as you probably know it, the dispcal cannot read or find >> the >> VMWare monitor and refuse to start. >> > > Hmm. It means that something isn't being emulated in quite the > way that real MSWindows operates. What is contained in > the diagnostic trace when you run dispwin or dispcal (the > -E flag in dispwin, the -D flag in dispcal) ? > > Graeme Gill. > >