Hi guys,
 
I just upgraded from 4-way Titans to 4-way 980 Classifieds - when I set up SLI on one screen, everything works great with a big increase in the 3dmark score, so the hardware looks good. However any time I try to activate surround, it immediately slows to a crawl. It takes about 2 minutes to activate, and then any mouse movement takes 10 seconds or more to register, keystrokes don't register at all.. Basically the computer becomes unusable. I've tried two different drivers, and the same happens, and now I can't think of anything else to try. Everything was fine on the Titans. Any ideas?

Asus Rampage IV Extreme, 3960x, Win 7 64-bit. Just updated bios and chipset to latest - thanks for the tip - however problem persists. No problem when using 3 displays in non-surround, no problem in using 1 display with SLI enabled, but using surround to span across displays makes computer completely non-responsive as soon as I click enable surround. It's not a complete crash - if I take my time I can move the mouse one bit at a time, wait for the cursor to move, and after a few minutes finally get the cursor onto the disable surround button to switch back. But it's unusable.

Thanks for helping!
 
I typically do the 2nd part each time - uninstall PrecisionX, do a full clean advanced install, and only select the main driver and PhysX, nothing else.
 
However the clean boot is something I hadn't thought of doing before, so I did it this time, exactly following your steps.
 
Unfortunately, still the same problem..

Thanks for trying. I'll leave them a message.. I'm also going to try the earliest drivers to see if that works, and then guess I'll try and do a clean windows install, and try each card separately..

Odd. What happens when you shutdown or reboot the PC?