I'm loading an Iframe from another module, using an href=xxx.html target=iframename etc. If I leave the module settings for width and height blank, I get my file in the left hand half of the iframe,, with nothing in the right half, separated by a scroll bar for the left side. I can push the scroll bar off to the right by setting the iframe width.
The forum won't let me paste a screenshot.
Here's a url to a GIF of the module. In this case, the Iframe Options simply point at an html file that contains a vertical frameset. I have the same problem with a vanila html file with no frames involved.
http://www.frontiernet.net/~jgurley/Untitled-1.gif





