Bah! Inconceivable! It was my own doing. Multiple domains hosted and two were using the same database. The database was deleted when I dropped (deleted, didn't renew) domain A, because the DB belonged to domain A.
The support team was pretty quick to direct my site to another DB that I had set up, and whamo! site's up and running.
Now, can anyone tell me how database A and database B can have the same content, yet if I delete database A my site goes down? I was under the impression that domain A linked to domain A databases only, etc.
Thanks for your input!!