Dimitrije Zivkovic wrote: Hi, > I bought I1pro2 rev E. > Can I use device with original driver? Hmm. I'm not quite sure what you mean. You certainly have to use the manufacturers system drivers to use it with the manufacturers software. To use it with ArgyllCMS you have to use the ArgyllCMS provided system drivers. > If I install Argyll driver, can I use original software then? You can if you switch drivers. See <http://www.argyllcms.com/doc/Installing_MSWindows.html> and look for "To switch between drivers:" Graeme Gill.