Lap seven: Lewis Hamilton is lapped by fourth-placed Jenson Button. The world champion has been into the pits for new tyres and a lot of fuel. He is, unsurprisingly, last.
Lap five: Mark Webber, who David Coulthard reckons was "too aggressive" at the start, is the fastest man on the track and he's fuelled longer than leader Rubens Barrichello.
Lap three: Here's the replay of the start... Lewis Hamilton touches Mark Webber's Red Bull before he goes off at the first corner, so that's where he picked up the puncture. Sebastian Vettel was swamped at the start, and now sits sixth, stuck behind Felipe Massa. Jenson Button has Heikki Kovalainen in front of him.
Lap one: Chaos! Absolute chaos. Lewis Hamilton flies off the start and threatens to take the lead - but he overdoes it into the tight first corner, and suffers a puncture in a collision with a Ferrari. Poor start from pole sitter Mark Webber - and Rubens Barrichello has the lead after one lap. Webber second, Kovalainen third, Massa up to fourth.