I have 2 pci-e video cards in my pc right now, recently added the second. Everything works fine in windows, and i am able to extend across 4 monitor without a problem. When I start up resolume, it detects everything fine, and runs smoothly as long as i have it only outputting fullscreen to 1 of the monitors. As soon as I turn on a 3rd display, in my case outputting to a 9 inch lcd screen for use with the 'preview matrix', things start to get funny. The monitors display what they should, and there is no lack in performance, but occasionally all the outputs will flicker white. Resolume will continue to run fine for up to 10 minutes (usually about 3 minutes) before the computer just reboots itself - no blue screen. I haven't even tried with 4 screens yet.
Is this something that has happened in Resolume before, or am i purely looking at a hardware conflict? The 2 cards are different, and not running in sli, but that shouldn't matter. One is an radeon x1800 gt, and the other is a radeon x600se (very cheap - bought purely to be an additional resolume output) I have all the latest drivers for both video cards.
Any thoughts would be appreciated.