Thanks, both. Darn, CTEASDEL, I've been waiting for something like this, and I'll miss the opportunity. We're due to leave at 0745. Ah well, next time perhaps!
I just checked with telephone check-in. They told me that the flight was being edited (?) and no check-in is possible right now. I guess this is the cargo situation DNW mentions. I'm to try again in half an hour.