Yahoo Web Hosting had a major glitch with my blog. They had to rebuild everything. Until they did, I couldn't post. And, with my schedule, today was the first day I could wait on hold for the 45 minutes I did before I could speak to someone. Unfortunately, they never replied to my email support requests.
So, I can post again, but I am not a happy Yahoo hosting customer.
Update: I have spoken to soon. The blog doesn't rebuild and new posts don't show up!
Furhter update: After being down for days and days, the Yahoo support guy seems to have fixed things for me. I haven't spoken to him today, but things now seem to be working. At least I can post!