SAN FRANCISCO - Colin Kaepernick, who smashed rushing records the last time he faced the Packers, spent Sunday's rematch smashing myths about him and the 49ers' offense.The 49ers' Joe Staley (74) locks up with Green Bay's Clay Matthews during a ruckus after Matthews' late tackle on Colin Kaepernick.Hector Amezcuahamezcua@ sacbee.comHector Amezcua hamezcua@sacbee.comColin Kaepernick is taken down out of bounds by the Packers' Clay Matthews, who drew a penalty and triggered a melee on Green Bay's sideline.