My 02 Sport Trac started having intermittent window problems. So times they worked and some times they did not, all 4 were having issues. Finally, all 4 windows stopped working. I have checked and changed the fuses and relays. I have also changed out the driver's side window master control switch. After doing all this, they still do not work. Does anyone have any other suggestions before I take a long drive on a short pier?