Hi all, I have two leadtek 7800GTX in sli and the problem is that I have to enable sli every single day if I leave the PC off for more than 7 to 10 hours and sometimes less. To enable Sli I boot the system and when it boots into windows a message pops up stating that the system needs to restart to enable sli and gives me a 15 second count down. When it restarts and boots into windows, it does not detect the second card and when I check into the Sli section of the nVidia display panal it tells me to add a second GPU. Then I shut down the system completly and boot it again into windows where now it detects the cards and I can enable Sli. Note: Restarting the system wont do it. When the system finally detects the cards i can restart and shut down the system as I like but if I left it for that length of time it will force me to take the same procedure again. I've been doing this since september and I finally got fed up < about time Could anyone please shed some light on whats going on with my system and if there is a way to fix it. Many thanks My specs is: Giga-byte GA-8N-Sli Royal Enermax Liberty 620W Windows XP SP2 Forceware 84.43 Mains power is always on.