What operating system are you running? It is not that important though, however it is important to download and install every driver and utility for this laptop (SONY's are a bit funny like this) to get the required driver in.
I have been programming on computers since the ZX81.
I am an apprentice trained Electronics Engineer with qualifications to back it up.
I have been repairing computers since 1996.
Yet to some people I still know nothing...