p2, Appian cards are fully supported under Win2k. In fact, Win2k comes with the native drivers for appian cards. So techinically, you don't even have to install the drivers from the CD or disk that comes with the card. Lancer, I don't know of a specific review comparing the two companies' products but I can give you a brief overview of Colorgraphic. Colorgraphic is a small, privately-owned company with limited resources. Their cards use outdated S3-based chips, which were abandoned by Appian and other manufacturers for faster Permedia III techonology several years ago. Their products do not support 3D technologies like DirectX or OpenGL, which are typically used with many processor-intensive applications. From a software standpoint, Colorgraphic has a display management product, but it lacks several of the features of Appian's Hydravision. Another thing to consider is that Colorgraphic products have never been offered as an OEM option by any of the large computer manufacturers such as DELL, HP, Compaq, etc.