Chase bugs. And I'm after some tough ones right now. Very frustrating, but you just have to take the code apart one piece at a time and test each one individually. And what's driving me nuts is that my code works on the test server, but somehow is getting disrupted between the server and the bot interface on the webpage.
That's a real insect; you can read about it here. I'd rather not think about what it would be gnawing if there hadn't been a carrot near by.