The driver side of my Buick Century is the only window that works in the whole car, but it does not always work right away. Sometimes you have to hit the button a few times before it rolls up or down. When I attempt to roll the other windows down I hear the motor going but nothing happens. The windows are stuck in the up position but they are probabley not on the roller because they will fall down periodically. The side view mirror is on the same panel as the window button and does not work at all. Could this just be a problem with a fuse or am I going to have to replace the windows if so how much would that run me to get fixed? or could I do it myself?