You don't mention the version of Windows you are using, which really is a
must when asking for help in the newsgroups, but, try the following and see
if it helps:
Courtesy of Don Varnau -
Open a webpage. Stretch it out to fullsize. Don't use maximize.
Choose any link on that webpage and right-click> open in a new window.
Stretch that second window out to the desired size- don't use maximize.
Close the first IE window. Then close that second resized window.