I'm unsure this is the right category, but as I'm new in the forums I hope you can forgive me if it isn't. I've had audiostutters for a very long time now, and due to not knowing why I've found myself searching the net for it every now and then. I stumbled upon a tool a few ways ago, namely the DPC Latency Checker. What you want with this is all green bars. I've mostly got red, though, spiking at about 11ms almost all the time! I've gotten so far that I'm positive that the DPC latencyissues I'm experiencing is the cause of my audio drop-outs/stutters. However, as for why I'm getting them is a whole other thing. And after checking with Microsoft Windows Performance Toolkit(xperf), I can see that the culprit seems to be dxgkrnl.sys, which I've ironed out to being the Direct X Graphic Kernel. The DPC latency view shows that dgxkrnl.sys has peaks of 12ms latency, as opposed to the next entry in the list which max is at 0.09ms. So, the culprit seems to be dxgkrnl.sys, the Direct X Graphic Kernel. That led me to try to disable the Graphics Card Device in Device manager. That actually did the trick, the latency bars in DPC Latency Checker were all green. Xperfs DPC view showed the same story, with dxgkrnl.sys not even being in the list. With further reading I learned that the Standard VGA Graphics Drivers doesn't communicate with dxgkrnl.sys. I now thought that I've got a drivererror with the nvidia-drivers. So, I enabled the Graphics Card Device again, and the latency got back to 11-12ms spikes all over. Then I uninstalled the nvidiadrivers, and the DPC Latency Checker bars went green again. However, I can't do without graphicsdrivers even if that would fix my soundsproblems. So, I installed an early version of nvidias drivers. That didn't do the trick, so I started going through the released drivers for my 8800GT, hoping for a fix. That's how far I've come at this point. No driver seems to fix my problem. It's really starting to bug me, since I listen alot to music at my computer while studying and playing games, etc. I hope a wise soul can help me with this matter. Screens for xperf DPC view and DPC Latency Checker, with nvidia graphics drivers installed. Notice dxgkrnl doing way to much DPC activity according to xperf, and all that red isn't good! Screens for xperf DPC view and DPC Latency Checker, with nvidia graphics not installed. And as soon as I uninstall the nvidia graphics drivers or disable the graphics card in device manager, no activity from dxgkrnl.sys in xperf, and all green bars in DPC Latency Checker. PS. I've done all driver installs cleanly. Uninstalling the old drivers first, booting to safemode and using DriverSweeper to get rid of all the leftovers of the drivers. Rebooting, and installing other drivers. EDIT: Didn't get the insert image option to work, so I've linked to the images instead.