Question : Java Server Page not displaying menu in IE8

I have two computers, both running XP, IE8 and Java 6.20.  All are at the latest releases on both computers.  On one computer, I log onto a website that has Java Server Pages that create a tree style menu.  That is, I can click on + to expand it.  When I click on a branch in the tree, which is in a window on the left side of the browser, a form opens on the right side of the browser.  When I try this on the second computer, the tree is there, but I can't see it.  I can tell its there because my mouse changes when I hoover over something clickable, and when I click, the proper form opens on the right side.  The only thing that displays on the left side where the menu should be is a pixelized looking rectangle.

I've uninstalled Java (9 different versions), and installed only the most current version(6.20).  I did a reset in IE8 on the the Internet Options-Advanced tab.  I changed screen resolutions.  I've disabled the Java add-ins in IE8.  They are now re-enabled.  Disabling them on the computer that works did not stop the website from working, so apparently the add-ins are not used.

The page also displays correctly on my Win7, IE8, Java 6.20 computer.

I'm not sure what to try next.

Here is the source of the webpage:
<html>
<html>
<FRAMESET ROWS="80, 30, *, 1">
  <FRAME SRC="top.jsp" NAME="TopFrame" noresize marginheight=0 marginwidth=0 scrolling="no" >
  <FRAME SRC="menu.jsp" NAME="HorizMenuFrame" frameborder=1 border=1 noresize marginheight=0 marginwidth=0 scrolling="no" >
    <FRAMESET cols="420, *">
       <FRAME SRC="menutree.jsp" frameborder=1 border=2 NAME="MenuTreeFrame" scrolling="yes">
       <FRAME SRC="blank.htm" NAME="BottomFrame" scrolling="yes">
    </FRAMESET>
    <FRAME SRC="blanktrigger.jsp?call_type=RELOAD_APPLET&searchCriterion=-4&searchValue=1838" NAME="HiddenFrame" marginheight=0 marginwidth=0 scrolling="no">
</FRAMESET>
</html>

</html>

Answer : Java Server Page not displaying menu in IE8

Clearing the users Internet Explorer history fixed the problem.
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