I've not tried SP, since i re-installed the game on Win7/64
i really don't think it's bottlenecking - i5 turbos to over 3ghz on two cores (turbo is on)
vsync is on but that aint it. i used fraps and just by looking at the screen it's easily hitting the 60hz of my monitor, i recorded the frame times and min max average and i get a min of 2, with sometimes 0.7 seconds between frames...these are massive drops not just the odd dropped frame as if the cpu is struggling
I am on windows 7 yeah, tried it with and without avast running (or installed), tried the enable dual video cards option - still nothing, turning off vsync also makes no difference...done adaware sweeps (then turned it off)...
it's driving me up the wall, i bought this new rig to run cod6 (which i've not even bothered getting), but now it won't play cod as bad as my old x2 system!!!
It eats L4D2 alive (at that's cpu intensive)
Is it worth trying to manually update PB (but surely if that was a problem it would just boot me right??)
Argghhh!!