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Thanks for your responses cazzz1975, Mosaic, B00, boxtops, and factor30. I remembered what else happened - I tried creating an avatar on the gravatar site - and soon after that the AB site started acted funny - all i could see was the very top part of the page where you could enter a question and post it. About an hour ago I disabled that gravatar, logged out of AB, and logged back in, and something seems to have reset itself. :) Today all the posts are back!