I need to use use my laptop with a beamer/projector and turns out that the function key (F7) does not work since I am running XP. I need a solution desperately and can some please help me get just the right drivers/software/whatever is needed to that I can use the function keys (especially the one for F7 i.e. for external monitor/beamer/projector).

Many many billion thanks in advance.

This post has a lot of information: I need Microsoft XP drivers from Sony Vaio Laptop (http://help.wugnet.com/windows/Microsoft-XP-drivers-Sony-Vaio-Laptopftopic-567361-days0-orderasc-8.html)

Thanks.