same here, core i7 960 3.5Ghz on x58 chipset 9Go DDR3 triple channel 1600mhz and Geforce GTX260 W7 64bit CPU usage is low but VLC is obviously skipping an awful lot of frames on some H.264 videos, 10bit or not most of my 1080p are lagy, and all my 720p 10bit are unwatchable, according to VLC stats, ...