Having problem with driverside window controls. All others work

What is your question?

I am having intermediate working not working driverside window controls nothing work, but sometimes works. But every othe control like windows or locks work on every other control. It's only the ds controls that I am having problems. I have no auto window no power mirror but have power sliding doors. I got a new main switch for the door went out to test old one and works. But then stopped. Had to play with it so window would go up. So I'm thinking it's not the switch. Is it the motor or regulator? I have not found the scenario I'm having. Like I said I'm only having problems with the driverside door controls only.