I am using the iframe on my site which is C5 5.3. If I try to put a block underneath the iframe block (I have tried autonav and search) it does not display properly in IE. It appears to work fine in firefox.

It looks like what happens is the iframe block overlays on top of the other block. The evidence of this is that if I choose autonav and allow it to create a long menu I will see the bottom of the menu beneath the iframe block.

Any hints on a fix for this?