Drivers for Windows 8 ?

I've just upgraded my laptop to Windows 8 Pro. (mistake ?)
Arduino has stopped working!

My attempts to update drivers have failed.

Please refer to pictures for the current status.

Your advice would be appreciated!

Thanks

Chris

screenshot.2.jpg

screenshot.3.jpg

screenshot.4.jpg

Fixed!

Sorry, I should have looked further down the page, found the solution with the revised Arduino.inf file etc.
All working now.

Thank you!

Chris