plug-in conflicts with Amazon Iframe?

Hi,

I have an Amazon Astore on my site. I have it installed with an iframe code from amazon. It has recently disappeared. I reinstalled the code in case that had been corrupted but that isn’t the problem.

So I’m wondering if anyone know us plug-ins that cause conflicts with frames, or astores or specifically with Amazon.

I don’t want to use a plug-in instead because I would have to recreate the wheel in terms of building up a curated product selection.