Taillight problem. Brake lights work when pedal is pressed, but the regular nighttime taillights do not work.

Also, when you hit the brakes the tail light failure light on the dash comes on. Oh yeah, the dash lights stopped working.

This happened suddenly when I was changing burned out bulbs in the taillights. 2 of 4 bulbs lit on each side, and then the lights failed. I checked fuses, but they seem to be intact.

Any ideas?