e30 4-door drivers door not unlocking

[Ceeker]

I have a strange issue. The drivers door will lock all doors but won't unlock or unlock the rest. The trunk will lock and unlock all the doors. I thought maybe the central lock module was toast so I changed it. Still the same symptoms. I also changed the actuator at some point thinking it might also be that. Car can lock and unlock all doors from the passenger side. once I look the doors from the drivers side I can't unlock it from the passenger side.

does anyone know what the problem could be?

thanks.

E.