* Eliminated the <tbody> from the message summary view. JS now replaces the entire...

* Eliminated the <tbody> from the message summary view.  JS now replaces the entire table including the <table></table> tags.  FINALLY got the browser to honor fixed column widths with no overflow, keeping the column proportions at 50/30/20 regardless of the width of the browser window.
* I also eliminated the fix_scrollbar_bug div in this view because it is apparently not needed anymore (it was intended to fix a rendering bug in IE5 and IE6).  There is no need to wage an aggressive war on this div, but I will remove it from various places when the opportunity arises.