Hi, Just a thought,
When I had my A series had the same problem, all windows just spontaniously went down and would not come up.
it was a 4 door LWB, I bought a new window control unit and replaced it, still didn't fix, I then replaced the drivers side switches, still nothing. replaced the passenger side switches and everything worked fine again.
So if you need it, I have a 4 window control box, but you issue may be the passenger side switches - there seems to be an extra wire/box on that side.. all other parts were tested ok, so maybe its the same for you.
check the lockout switch if you have 5 door A. that may be sticky and stopping the windows working.