Squirrel,

I thought that BIOS updates included everyhthing so hopefully that version will do it.

The on board CD drive is visible in Control Panel, System but doesn't recognise discs. It looks to be a well known problem with the Matsushita drive in these laptops. I have upgraded the firmware and every other fix I can find reference to on the web, but without success. It also looks as though in most cases the only fix was to return it to Sony for a replacement.

Good point about the documentation, I'll give it a try, but wouldn't I see something the the BIOS boot options?