Sorry I had to change the Subject line... With ColorVision comes an app called ProfileChooser.exe. What this does is to list the monitor profiles sitting in the ..\color directory that have VCGT tags. The profiles shown in bold are created with ColorVision software, the profiles shown in italic were created with other software. The way the interface works is that the user selects a given profile for extracting and downloading the LUT into video RAM. Of course, it will only honor the LUT is recognizes. So, I first selected a profile in bold, that I created with ColorVision software. Immediately, my screen changed appearance. Then I exited the application and launched dispwin with the Argyll freshly created monitor profile and saw the monitor changed appearance once again. So, as far as using Argyll's monitor profiles under Windows, XP or Vista, one has to manually launch dispwin on startup. Or is there a way to execute a small batch file upon system startup that contains just one line : > dispwin myCalibration.cal ? I'll have to check system.ini or some other *.ini file ... Ah! Windows, the OS we love to hate ;-) > As for Vista, I would not be all that shocked to discover that display > profile LUT loading required a WCS profile.... > > -- > Craig Ringer Roger Breton