I'm having some minor (mainly graphics-related) issues involving windows ghosting a bit when they're moved (the re-drawing of the window on desktop is slow, creating a very subtle ghosting effect when the window is moved). Additionally I have issues where Aero is disabled when all 4 monitors (or when I tested it with 5 monitors as well) are attached.
I have troubleshooted and investigated the GPU extensively (HD6990), the drivers, etc., and everything seems in order.
I'm running a large surface off the card (3 monitors in 2560x1600 and 1 in 1920x1080, 2 of them use active adapters).
Graphics applications, games, run fine but that's only on ONE monitor.
I'm wondering if some of these issues could possibly be related to an underclocked Core i7 I'm using, which on this particular machine I've never bothered to even stockclock, let alone overclock.
Could this possibly explain the mainly graphics-related phenomena I'm seeing?