Bolton Wanderers’ tremendous revival under Gary Megson continued with a comfortable win against Birmingham City at the Reebok Stadium.And it should have been even more emphatic as, with the scoresheet still blank, Kevin Nolan had a ‘goal’ incorrectly ruled out for offside. The wandering midfielder was clearly in an onside position when the free-kick was taken and, although there were numerous attempts to get a head on to the cross, nobody had got a touch on the ball before it reached Nolan at the far post.