Jan, Don't know if you've already tried resetting the PRAM!? Press simoultaneously command+alt+P+R on your keyboard immediately after a startup/restart, then let it cycle/chime two times. Depress all keys letting the Cube boot. Please report if this solved the glitch. Good luck, LM >>> witkowsk at cshl.edu - 06/04/2005 14:29 PM >>> I have just tried to link a 20" Cinema Display to a Cube, using the Belkin DVI-ADC adaptor, but the monitor remains blank. However, on restarting the Cube, the monitor shows the startup screen (grey, dark grey apple, progress circle), all looking fine. So the monitor is working and the adaptor is working. But then the screen goes black as the Cube goes to display the next screen in the startup process. Any suggestions? -- Jan A. Witkowski, Ph.D. Executive Director, Banbury Center Cold Spring Harbor Laboratory PO Box 534 Cold Spring Harbor NY 11724-0534 (516) 367-8398 (516) 367-5106 fax Editor-in-chief, "Trends in Biochemical Sciences" home page: http://www.cshl.edu/banbury/witkowski.html Banbury Center: http://www.cshl.edu/banbury Watson School of Biological Sciences: http://www.cshl.edu/gradschool/