drivers door window switch is the master, the back window lock out switch tends to break. or you just have two burnt up rear regulators.
if the master switch is dead the front pass widow may not work from its own switch. only the master will work it.
being you had one window quit, then the other quit later on, id think its the regulators gone bad, either cables or motor, either way, new regulator is the fix.
you can run power to them to test em. unplug it and run power to the plug. cordless drill battery packs work well for this.
