"What is seen on your display and what the image should look like can be two quite different things. If you value image quality and accuracy, calibration of your monitor will be important. Anyone involved in digital photography, graphic design or artwork will recognise the importance that their monitor is producing the best results, showing true colors and black levels. The following open source tools are invaluable for anyone looking for accurate color reproduction." -- source: http://www.linuxtoday.com/infrastructure/calibrate-your-monitor-with-these-o... Cheers, Peter -- Peter Reutemann Dept. of Computer Science University of Waikato, NZ +64 (7) 858-5174 http://www.cms.waikato.ac.nz/~fracpete/ http://www.data-mining.co.nz/