Our train is the red and blue Santa Fe. It has a red button to make the train noises and a black button to make the train move. My older son hit the black button with a train button and the train won't move now. I moved the button the try and fix it. Inside are two springs and a metal rectangle piece. I am able to assemble it to get the train moving but can't get the button back on right. Please help! I hope it can be fixed. We bought it used for our younger son for Christmas! Thanks. Sarah [email protected]