lock switch

I can't figure this out. I have a 99 Tahoe LS, and my passenger door lock is no longer working. What happened is my girlfriend was trying to pull the inside handle to open the door at the same time I was unlocking the door on my side, and somehow the door lock lever is on the unlock position...

So I have a 99 Tahoe LS. I'm having all kinds of problems with the two front doors, the first of which is that, in hot weather, or when the sun warms up the drivers side door, when I try to unlock the door with the keyfob, the door tries to unlock, but cant. Back locks operate perfectly normal...

I have a 1999 GMC Yukon. The door locks just stopped working. When I push the switch on the door, there is a clicking noise under the dash, but nothing happens. None of the doors unlock, and none of the switches work. I am assuming it is not the actuators because they would all have to...