WTF? Turn signals not working? Options

[turbohcar]

One of the very last things left to do on my car before it's ready is fix the turn signals. The front turn signals in my car do not work. They stay on when the lights are on but do not blink when prompted by the lever. The rears work fine (although at a fast pace like when one is burnt out) and I'm not quite sure why it's just the fronts aren't working. Any ideas? I figure maybe the flasher box is the culprit and while I've got the steering column out it would be a lot easier to replace. I haven't altered them other than putting replacement (direct fit replacement) amber bulbs in there and some clear corners. BTW, are my bulbs in the middle on the inside of the housing supposed to flash too? Because they aren't even on I don't think.