Since 11:00 a.m. yesterday morning, my blog has been acting up. You can comment on all but the "Virgin challenge" post. I'm turning comments off this post, because if you tried to do so you'd get a blank white screen.
I'm sorry about this. Two kind website-building friends, my server, and my software company are all involved in trying to get to the bottom of the problem. I'm pretty worthless on this sort of thing.