Disclaimer: I don't know how general this fix is but, after fighting for weeks trying to fix some non-working "fn" keys by replacing .dll's and drivers, this corrected the problems and they have not recurred. We'll see how it goes...
After some forced system maintenance three of my hotkeys quit working:
- fn+f5 (wireless radio control)
fn+f7 (presentatioin or display scheme), and
fn+f8 (Ultranav trackpoint and touch pad controls)
- Start -> Control Panel -> Power Options
'An exception occurred while trying to run "C:\WINDOWS\system32\shell32.dll,Control_RunDLL "C:\WINDOWS\system32\powercfg.cpl",Power Options" '
I received the following suggestion as a correction to the Power Options problem. As far as I know it no dangerous side effects. The only thing I noticed was that my personalized power schemes disappeared, leaving only the standard ones.
Try this...
- Click on Start->Run,
Type: powercfg /RestoreDefaultPolicies and
hit Ok.



