In IE 7 and less the parent element <center> is causing that. It's best to avoid using center tags in markup. The css style margin: 0 auto with a specified width is preferred. There may be other contributing factors like text-align: center style for one or more other parent elements, perhaps even one or more additional parent center tags. Things like that can happen in inherited code if the previous designer went on overkill to get things centered. In light of that a quick fix would be to give the sag scroller division itself text-align left (here shown inline, the preferred method would be to add it to the stylesheet):
Code:
<div id="mysagscroller" class="sagscroller" style="text-align: left;">
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