I got a mac pro with a 20" ACD last September, and I love it, etc, etc. I recently bought a 22" Acer monitor and am using them both to take advantage of the extended desktop feature. I have the 20" as my main display, with the menu bar, and the 22" on the right. The problem I'm having is that if one of the monitors is turned off while the computer is on, and turned back on, the picture flickers from one to the other, going black alternately. The only way I've found to remedy the problem is to reboot my computer. Is there any way to fix this problem, or will I have to continue rebooting?