I've been able to get dual monitors working on my radeon 3870/ubuntu system with 2 DVI Monitors. The only problem I'm having is that my second monitor seems to be refreshing horrendously slow. I can drag around a terminal window, for instance, on the first screen without any problem but when I drag it over to the second screen and try to do the same thing it repaints noticeably slower than from the first. I'm not sure why video is so quick on the first monitor but not on the second -- any suggestions? Anything is appreciated.