Hi Nicole,
I looked at the page of your site at www.glyphdoctors.com and discovered, that you write
<div class="headermain">
and
<div class="headermenu">
around <tr>
in the header table. This is not valid. Validation shows these errors:
Line 62, column 26: document type does not allow element "div" here
<div class="headermain">
The Browsers seam to "correct" the problem by moving the two divs as empty divs before the table, which produces the extra space in MSIE. I tried and took the divs out in a copy of your page and everything worked fine.
I think you must rework your header to solve this behavior in MSIE.
I hope this helps.
Urs