scroll bar is currently clipped underneath final table column

[RomRazor]

What is causing scroll bar to not be clipped on side of table in this fiddle: http://jsfiddle.net/m4HB3/8/ At the moment it is underneath the last column, meaning it is taking up some of that columns space and thus causing alignment issues with the table.The table headers are fixed as I want a scrolling table with fixed headers.Could the problem be the width set for the table and individual columns?HTML:\[code\] <table id="tableqanda" cellpadding="0" cellspacing="0"> <thead> <tr> <th width="5%" class="questionno">Question No.</th> <th width="27%" class="question">Question</th> <th width="7%" class="option">Option Type</th> <th width="11%" class="image">Image</th> </tr> </thead> </table> <div id="tableqanda_onthefly_container"> <table id="tableqanda_onthefly" cellpadding="0" cellspacing="0"> <tbody> <tr class="tableqandarow"><td width="5%" class="questionno">1</td><td width="27%" class="question">What is a RAM?</td><td width="7%" class="option">A-E</td><td width="11%" class="imagetd"><ul class="qandaul"><li>Lighthouse_4.jpg</li></ul></td></tr><tr class="tableqandarow"><td width="5%" class="questionno">2</td><td width="27%" class="question">Name 3 car maneuvers you may do in a test?</td><td width="7%" class="option">A-F</td><td width="11%" class="imagetd"><ul class="qandaul"><li>Tulips_3.jpg</li></ul></td></tr> </tbody> </table> </div>\[/code\]CSS:\[code\]#tableqanda_onthefly_container{ width:100%; overflow-y: auto; overflow-x: hidden; max-height:25px;}#tableqanda_onthefly{ width:100%; overflow-y: auto; overflow-x: hidden; clear:both;}#tableqanda_onthefly td{ border:1px black solid; border-collapse:collapse;}#tableqanda, #tableqanda_onthefly{ border:1px black solid; border-collapse:collapse; table-layout:fixed; word-wrap:break-word;} #tableqanda{ width:100%; margin-left:0; float:left;}#tableqanda td { vertical-align: middle; border:1px black solid; border-collapse:collapse;}#tableqanda th{ border:1px black solid; border-collapse:collapse; text-align:center;}.tableqandarow{ border:1px black solid; border-collapse:collapse;}\[/code\]