I had the same thing happen on my '95. The problem ended up being trash dropped into the switch block on the driver's door, that was keeping contacts from being made. The power for the other window switches goes directly through the driver's door switch, allowing the ability to "lock out" all of the other switches on the other doors. If the "lock out" contacts become dirty, they will not allow power to be sent to the other doors, no matter the position of the switch.
If you remove the door panel, then remove the window/lock switch block from the door, you can then seperate the block into two pieces, and give all the contacts a good cleaning (no sandpaper). After 10 years, there has probably been a good amount of dust, soda/coffee, dirt, and general gunk spilt into that switch block to keep it from functioning properly.