I could do this in Build 9841 but in Build 9860, every time I try to set a custom resolution (5960x1080) I get a BlueScreen which seems to be related to cdd.dll. Since this is an Nvidia SLI system running three monitors it might be specific to that type of operation, but this behavior is worse than the earlier Build. To get my system back I have to boot into safe mode and uninstall the Display Adapters... If you want to check, the dump files. I seem to be having problems with the symbols in WinDbg if anyone knows a fix. It worked fine in 8.1 and I am still using the same symbol locations.