Hi, I have an activated, clean installation of Windows 8 x64 RTM installed on my laptop that has a Core i5-2410M 2.4GHz processor, a GeForce GT 540M 2GB GPU and 4GB of DDR3 RAM. This laptop previously had Windows 7 x64 SP1 and it had no problems with DPC Latency with peaks only measuring at 2-digit microseconds. But with Windows 8 x64 RTM, using LatencyMon, I get minimum to maximum latencies of 300us to 1000us respectively. I already installed the latest drivers I could find, all specifically for Windows 8 and tried the bcdedit /set disabledynamictick yes workaround, but still the high DPC latencies persist. Any known solutions for this problem? Thanks.