My fn keys are not working at all, i can't swap lcd screen. Model vgn SZ3xwp/c , Anybody can help me?

[andresfalk]

My fn keys stopped working and i can't use the switch fn+f7 to add a lcd screen, as well the volume and the bright keys. Anybody can give me a help here, please?

Thanks

[Blencogo]

Are you still using the original Windows XP or have you changed the operating system?

You will need to reinstall the Sony Utilities.  The Original Utilities Package for XP can be downloaded from here: -

http://support.vaio.sony.eu/computing/vaio/downloads/preinstalled/index.aspx?l=en_GB&m=VGN-SZ3XWP_C

You need to install these utilities in the correct order: -

1. Sony Utils DLL

2. Sony Shared Library

3. Setting Utility Series

4. Vaio Event Service