Norwich climbed to fourth, but there was no other change at the top of the Championship with Queens Park Rangers, Swansea and Cardiff all victorious.Leaders QPR maintained their five-point buffer over second-placed Swansea on Saturday, with a 3-0 win over Middlesbrough at the Riverside Stadium.A Heidar Helguson brace plus another goal from Moroccan midfielder Adel Taarabt handed Rangers all three points, as their quest for automatic promotion continues to look like a reality.Swansea remain in second after their 3-0 win over fellow promotion rivals Leeds, thanks to a double from Scott Sinclair and another to Luke Moore, while third-placed Cardiff defeated Hull 2-0, with Michael Chopra and Jay Emmanuel-Thomas scoring the goals.A first-half brace from Andrew Crofts helped Norwich to a 2-0 away win over Barnsley, lifting them over Nottingham Forrest and into fourth place after Forrest could only manage a 0-0 draw at Millwall.Crystal Palace remain mired in a relegation dogfight after their thrilling 3-3 draw with Reading, Bristol City defeated Scunthorpe 2-0 and Doncaster Rovers played out a 1-1 draw with Watford.Portsmouth climbed over Ipswich into 13th position with a 2-0 win at Portman Road, but Leicester could not take advantage of Leeds' slip up after they were held to a 1-1 draw at home by Coventry.Preston North End are still anchored to the foot of the table after their 2-1 loss to Burnley at home, while Derby County rose to 18th place after a Theo Robinson goal handed them a 1-0 win over Sheffield United, who are fighting for Championship survival.