I posted it yesterday in my reply, but want to make sure it would be fixed in 2.4 release.
Here is what we must change in miami_blue
In index.main.php
Find <div id="wrapper2"> on line 30 cut it and paste on line 296 right before <div id="pageFooter">. No we need to close that div on line 325
One more trick. Add alt="" on line 216 in
<img src="../../rsc/img/blank.gif" width="1" height="1" />
Open style.css and delete ":" on line 71, then scroll down to the line 108 and delete the space between 1.22 and em