I have a 95 F 350 XLT with power windows and this problem just started not too long ago. The drivers side window will roll down just fine. It's when I want to roll it up it starts jumping and if it's half way down it will start moving down while jumping instead of up. The only way to get it up is to grab the window and pull on it while pressing the switch down and then it will go by itself. Then there are times when it will go up and down like it's suppose to do with the switch. And when it's up and I'm on a bumpy road it starts to go down in very small increments without touching the switch. Where I live in my 5th they have a rule that we can't work on our vehicles so before I take it to a shop I would like to have an idea of just what the problem might be. Any ideas