This happen when you upgrade Vista to Windows 7 for this model. To solve the keyboard issue:
Uninstall HP QLB and install this one:
HP Quick Lunch Buttons
A-Note Drivers Acer Drivers Alienware DriversApple DriversAsus Drivers-BenQDrivers Clevo Driver Compaq Drivers Dell Drivers DTK Drivers HCLDriver How-To HP Drivers Lenovo Drivers LG Drivers Medion Driver MSI Drivers NEC Drivers nVidia Drivers Packard Bell DriversPositivo Drivers SaharaSahara KN7 Samsung Drivers Single Driver Sony Vaio Toshiba Drivers
Uninstall HP QLB and install this one:
HP Quick Lunch Buttons
A-Note Drivers Acer Drivers Alienware DriversApple DriversAsus Drivers-BenQDrivers Clevo Driver Compaq Drivers Dell Drivers DTK Drivers HCLDriver How-To HP Drivers Lenovo Drivers LG Drivers Medion Driver MSI Drivers NEC Drivers nVidia Drivers Packard Bell DriversPositivo Drivers SaharaSahara KN7 Samsung Drivers Single Driver Sony Vaio Toshiba Drivers