The Chicago Bears topped the Minnesota Vikings 40-14 at TCF Bank Stadium on the University of Minnesota campus Monday night.  Brett Favre made a suprise start at quarterback being upgraded from out to questionable earlier in the day.  He tested his arm and shoulder before the game and the team decided to give it a go.  Favre left the game in the 2nd quarter after being sacked and suffering a head injury which he called a concussion after the game.  Joe Webb replaced him and threw for 129 yards with 2 interceptions but Webb ran for 38 yards and a touchdown.  Toby Gerhart started at tailback for the Vikings and ran for 77 yards.  Adrian Peterson did not play because of knee and ankle injuries.  Jay Cutler threw for 194 yards and 3 touchdowns for the Bears.  Chicago improves to 10-4 and clinches the NFC North Division title.  The Vikings are 5-9 and have 2 games remaining and will next play at Philadelphia Sunday night at 7:20, pregame on WJON at 6:00.