"Anonymous" wrote in message
...
I just recently had my vaio VGN-FS550 fixed from a virus, and ever
since
then, the "fn" key combinations will not work anymore, almost as if it
is
de-activated. Can somebody tell me how to re-activate the "fn" key?

You have somehow prevented startup apps, including the two Sony
proprietary handlers for keyboard functions. These are autostarted and
should be checked in msconfig, startup tab. Start, Run command, type:
msconfig [enter], and check the list of startup applications.

Q