1992 Toyota Camry power windows won't work

[LaughingGravy]

Hi all-
I've checked all fuses in the fuse box, I've opened up the panels on all 4 doors to check that the wiring harness is plugged to each power window switch.
The power locks work fine. All else in the car works fine.

Does anyone here know of any particular relay box or some such that might have failed as well as its location and how to identify it?

Nothing unusual happened to the car. It was turned off as usual in a driveway and the windows were working fine this afternoon. The next time we got in, no windows.
I checked the Power window lock and it's not locked. I toggled it up and down as well in the case that ther might have been an issue with that.

I did remove the plastic panel around the fuses. Behind the panel, to the right of the fuses is a brown relay box, but I don't know what it controls.
Any ideas?