I just got a new (to me) home and it has a pocket door stuck closed. It is a little slanted with the top of the pocket door a 1/2 inch recessed from the door stop trim while the bottom of the door protrudes 1/4 inch. When trying to open, it appears to rock at the front rollers but I can't see anything to be wrong. I've pulled a good deal with no effect. Does anyone have an idea as to what has gone wrong and ideas on how to fix it? Here's a picture of what the front roller/carriage (whatever it is called) looks like:
There is a wheel on both sides of it and it almost seems as though the wheels are locked against the wall because the entire door rotates slightly at that location.