Invalid Event Description?

I'm trying to post an event. I've posted many events, and I've never had a problem. For some reason, this event I'm trying to post for Sunday, I keep getting an "Invalid Event Description." What the heck does that mean?

I have no special characters in my title. No cuss words in my description. It's 590 out of 1024 characters. It's marked mature. Any ideas? I didn't want to post my description here because I don't want people to think I'm just trying to post my event here.

Rocky Rutabaga reported the same thing in the forums last Sunday (I think it was.)
I copied his text and pasted it unedited into the event posting form and it worked fine.

I'm getting this same error and I'm ready to seek therapy.

wtf is up with this?