Hi All, There is a QtImageViewer in the Auxiliary directory but no USE_QT option in the base CMakeList of Insight. Should I add the option or do we plan to move this Viewer in the future ? Thanks Julien -- Julien Jomier (919) 966-5857 Computer-Aided Diagnosis and Display Lab julien@jomier.com Department of Radiology, CB 7515, UNC http://julien.jomier.com Chapel Hill, NC 27599-7515