I've received several complaints from visitors to one of my websites. Individuals contacting us regarding these issues are using IE7, running on Windows XP. I can replicate the issue either by running IE7 itself, or by displaying the site in IE8/IE9 in compatibility mode, with IE7 document mode selected.
This page contains a registration form with fieldwraps that float:left, and occasionally are assigned a "clear:both" to start a new line of fields. Again, the desired output can be viewed in any modern, standards compliant browser, or even in IE8/IE9.
If you need any clarification of the problem, I'm happy to provide it, and greatly appreciate any assistance you can offer!