Has anyone any experience of any USB devices preventing the Power Options from kicking in. This only happens for me with a Phillips Speechmike III (a II is fine). For example, when this device is inserted, the screensaver should kick in after 15 minutes, however it doesn't. Remove the device, and it behaves as it should.
I've done a trace and checked the event logs for appropriate entries that would show the device interfering with the power settings, to no avail. Also, this issue occurs regardless of whether the USB selective/suspend is enabled or disabled.
Many Thanks