A/C only blowing out of passenger side?

[devinlamothe]

So here's a weird one. The other day I turn my A/C on and it doesn't feel that cold. I thought, OK, it IS really hot so maybe it needs time to cool down the air.

Not the case. I felt the passenger side centre duct and it was freezing, as was the passenger vent by the window. It's strange since the centre duct is ONE unit with just a splitter on the dash...

Does anyone know what I can check? Obviously the A/C is working fine but it seems I am not getting much cold air at all from the drivers side. I've checked the obvious so far (ie: removed cabin filter, checked the centre dash vent for obstructions).