Mail.app is not being a good application lately. Last week the program suddenly quit when I designated a message that had escaped through the filter as Junk. Then it quit again and again. On the advice from the Apple boards, I deleted the MessageSorting.plist. That solved the quitting issue, but all my Rules had to be remade. Fine and back to normal until Friday: not only is Mail.app quitting when designated Junk again, it's now added suddenly quitting for no reason at all to its tricks. To isolate the problem, I have taken out HTTP Mail Plugin and reset the Junk filter. So far the past ten minutes have been issue-free. People I expect to let me down... from my electronic friends I expect more.