I noticed you have an ATI display adaptor which means you should check for the following on your system:
AtiExtEvent registry key located at:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows T\CurrentVersion\Winlogon\Notify\AtiExtEvent\
Ati Hotkey Poller Service running. To check, 'Start > Run > services.msc'
If it's there do not stop the service, I'll get to that.
Check the task manager to see if you have the following process running:
ati2evxx.exe
If the above three conditions are true do the following:
Disable the Ati Hotkey Poller service
From a command prompt run the following command (exactly how you see it):
sc config "Ati Hotkey Poller" start= disabled
Kill the ati2evxx.exe process
From a command prompt run the following:
taskkill /f /im ati2evxx.exe
Delete the entire AtiExtEvent registry from the registry (it's useless!):
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\AtiExtEvent
Or you could just run the following batch file and avoid manually performing the previous steps:
---------------------------------------------------------------------------------------
@Echo Off
cls
ECHO.
ECHO.
Echo Detecting registry for existance of AtiExtEvent regkey
ECHO.
ECHO.
REM The following line returns a 0 if the key is found and a 1 if it is not found
REG QUERY "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\AtiExtEvent\"
ECHO %ERRORLEVEL%
IF %ERRORLEVEL%==0 (
ECHO The AtiExtEvent registry key EXISTS!
ECHO.
ECHO.
REM delay for 10 seconds
ping -n 10 127.0.0.1 >NUL
echo Disabling the Ati Hotkey Poller service
sc config "Ati Hotkey Poller" start= disabled
ECHO.
ECHO.
REM delay for 10 seconds
ping -n 10 127.0.0.1 >NUL
echo Killing the ati2evxx.exe process
taskkill /f /im ati2evxx.exe
ECHO.
ECHO.
REM delay for 10 seconds
ping -n 10 127.0.0.1 >NUL
echo Deleting the AtiExtEvent registry key entry
REG DELETE "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\AtiExtEvent" /f
ECHO This window will close by itself in 10 seconds
ping -n 8 127.0.0.1 >NUL
) ELSE (
REM Display notification if AtiExtEvent regkey does not exist and close cmd window
ECHO The regkey does not exist. This window will close in 10 seconds
ping -n 10 127.0.0.1 >NUL
)
Exit
-------------------------------------------------------------------------------------------
Reboot and your problems should be over. Notice the AtiExtEvent key is under the Winlogon key which, logically, can potentially screw up your logon. If you don't use any hotkey functions to change your display adaptor settings then you don't need this useless PAIN-IN-THE-*** stupid service running.

Cheers