Ever since I've had my car, I've had to hit the power door lock button twice (sometimes more) to lock the driver's side door. The passenger side works fine, though. Is there an adjustment, or some kind of special lubricant that I can use to help free this up? Maybe like, dielectric grease?

 

Take the door panel off and clean all the linkage real good with carb cleaner and then spray with a can of lithium grease. If you know how to do it, remove the whole linkage assembly from the door and clean it good with scotch brite and carb cleaner. This includes the latch striker assembly as well. Also check the door lock linkage for any points where it could be binding. I found one rod on mine that was slightly bent casuing it to hang up.

 

Well when i took the door panel off, it looked like the motor wasn't coming up far enough when I hit the button. I took the vertical rod off, and straightened it a little bit, to get some more reach out of it. It is just latching to lock the door now, but not all the way like the passenger side. But it is passable for now.
On a side note, I've noticed that my window like pivots from front to back, when I roll the window up or down. It looks like the regualtor might be slightly bent or something. I can see where the roller is just rubbing against the ragualtor track. So I took apart the passenger side to see if that one looked the same, but it does not appear to have as much of a bend to it.
The other thing I noticed about the driver's side, is that when the window comes all the way down, it bottoms out on the door. I can see where it is making contact with the floor of the door, near the back. Any ideas as to what is going on? I know the car had been impacted in the passenger side, by the door, because I can see the dent (duh), but do you thing it would effect the drivers side too? The seams on the driver's side look pretty even.