Just coming back to say IT'S B-A-A-A-CK.
Only took a few minutes to change permissions, so admin doesn't have to approve, don't have to register, etc, and turn comments all back on, thx to Alison's suggestion a while back, but still very annoying. This has happened on 2 out of 4 blogs. It's probably been a couple of months since the last time, so Ipstenu is right, it's irregular. I don't know if it's uncommon - lots of people don't know how to complain.
Interestingly, Ipower was down for an hour last week, and also 2 days ago - I'm wondering if that had something to do with this.
I do have older version of WP on 3 blogs. And fusse, I STRONGLY recommend that you NOT upgrade to 3.1 at all - read all the problems. They need a new version before people should upgrade.