My earlier post did not work for me, but below did so I hope it helps others wanting to customize their IE options.
"First off, create a new Restore Point or go into regedit >file> export> create a name for the file like Good Registry and save it to My Documents (or somewhere you'll remember to look if needed).
Now, go through the Registry tree HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVer sion\Explorer\Advanced . In the right hand pane, right click in a blank area and select New >DWordValue> a new file will be created and highlighted, type in TaskbarGroupSize and then click out side the box It should not be highlighted anymore. Double click on the new TaskbarGroupSize file and it will open. Click on the Decimal radio button and enter 00000008 (if 8 or more is the number of windows you want grouped) > OK. Close down the Registry and Reboot."