I like to put my new XPS Studio i7 into S3 suspend mode when I am away. This works properly if the suspend time is of relatively short duration (< 4 hrs). For longer durations, when I press a key to resume I can hear the computer respond (fan revs, etc.) but both of my dual monitors remain black. I have the most recent drivers and bios. I've seen various posts that indicate this could be a vista problem, or a graphic card problem, but no real solutions that have worked for me. How can I best troubleshoot this? What I've Tried Tried the various power management settings from performance to energy saving When resumed with black screens, I plugged Wacom tablet into USB hoping it would trigger a video update My Configuration Dell XPS Studio i7 940 ATI 4850 graphic card Dell 2408WFP primary monitor Samsung SyncMaster 912n secondary monitor Dell supplied USB mouse MS USB Digital Media Pro keyboard Vista Home Premium 64 bit Also, I am using an IOGear USB KVM switch that switches the USB Keyboard, mouse and 2408 display between the i7 and an older Dell laptop. The laptop suspends and resumes properly.