[dokk]

Nothing left unchanged will convert the same forever, it's hard to say as nothing applies in every case but there are so many reasons things can drop, whether it's the processor having issues, maybe the content is getting a little stale, sometimes the traffic changes source and quality. If they've been treating you right it's always worth a go to freshen up the sales pitch, give it another look, maybe not take off but move to a different position on the page, try in combination with other sponsor program(s), watch your stats and check the trend.. if it picks back up, so much the better and if an additional sponsor is making mo' money that you added.. nothing wrong with that!

;-)