REGISTRY INVOLVED!
after installing the new netgear driver/utility go to Start -->Run and type regedit.
when the registry editor opens browse to HKEY_LOCAL_MACHINE/Software/Microsoft/Windows NT/Current Version/WINLOGON
Delete the key named GINAdll
Thats it....afterward you may want to go back into the control panel and check the 'change the way users log on or off' and make sure the welcome screen and fast user switching are both checked.
Hope that helps. If not post back.