Sorry Doug, I've got my wrong head on… I should have said it's MONTHLY that has gone by the wayside (too many small payments…) QUARTERLYstill works (I have a quarterly sub to ME although I get an editor's copy of MEW now!)
I think the options offers are annual, the 1 2 or 3 years. I think the last three are quarterly which is why the 1 year is slightly more than a single annual payment (we get charged for every DD we collect so quarterly costs us four times as much to collect as annual regardless of the extra admin).
However, it doesn't make this clear so I will check for you.
Neil