Try the following and see if it helps:


Go to Tools>Internet Options> Advanced tab
UNcheck "Reuse windows for launching shortcuts"
Click Apply
Close IE and reopen then see if the problem still exists


also..


How to open Multiple Browser Windows
http://navigators.com/multiple_browsers.html


also.....................


You may have a program running which is blocking pop-up windows-
something like Yahoo Companion, Google toolbar, a firewall, Earthlink (or
another) pop-up blocker, etc. You'll have to uninstall the program or turn
off the feature that's blocking new windows.


With some programs of this type, using Ctrl+click or Shift+click will allow
a new window.


and................


Can't open other windows:
http://www.fjsmjs.com/OE/nolinks.htm
http://support.microsoft.com/?kbid=281679