If I load a HTML page with multiple ytplayer iframe embeds only the first video functions. The others appear as white boxes. If I load the exact same HTML page in Internet Explorer all of the videos function.

I'm trying to figure out which setting I need to tweak. I've been pouring over the INTERNET_FEATURE_CONTROLS but haven't spotted anything.

Any ideas where else to look for this setting or group of settings?

TKS