I've been using Colorvision’s Spyder 2 pro monitor calibration system for quite a few years now and I just recently upgraded my computer’s operating system to Windows 7 from Windows XP… While re-installing all of my software on the new OS I noticed that the Spyder 2 software installed, but couldn't run… it would just error out every time. I contacted DataColor only to find out that their spyder 2 system isn't supported on Windows 7! I’m completely disappointed and such is the life of a photographer and ever evolving technology!