No netbook should be running Vista. Period. Exclamation point. Dell Mini 9 smashed repeatedly into the bridge of Steve Ballmer's nose. And that even goes for the beefy-for-a-netbook-but-don't-call-it-a-netbook Sony Vaio P.
Luckily, the process of downgrading the Vaio P's built-in Vista install is relatively simple, with the only casualties being volume and mute buttons that no longer work. A small price to pay for not running Vista.