I have run into problems occassionally when our programmers say there is a certificate problem with a merchant that uses Google Adwords tracking. Once I see what it is, I say Oh... that's just Google's conversion code causing the error and I cut, paste, and send the https version.
But Overture has 1 code fits all.
Overture does some java thing that asks the server if the page the code is on is http or https. No problems. I know this is a minor nuisance, but still, Google can make a simple fix to eliminate it like Overture does.