Thanks for the replies so far.
The issue is not so much related to windows not going full size but rather not staying shrunk.
After speaking with the person I am trying to help I got some further clarification on the issue(like getting info from a small child most times
). Seems this issue is more prevalent when she is running Live mail. She runs the main program in a full window but when she clicks on new or reply, the new or reply window always opens up in a full window no matter how she re-sizes it.
On my systems both running live mail my windows will stay the way I re-size them.