Processes in Microsoft 365 for setting up Office apps, redeeming product keys, and activating licenses.
Try using the Fix It in method 2 of this tip to try and nuke any "bits and pieces" of 2003 that may be lurking in your system
KB 2639197 Uninstall Office 2003
http://support.microsoft.com/kb/2639197 2003**** (First, make a copy of your NORMAL.DOT)
Method 1: Uninstall from Control Panel
Method 2: Uninstall using Fix it 50416
Method 3: Uninstall with the Program Install and Uninstall troubleshooter
Method 4: Remove manually
Method 2 in this tip does a more thorough job that the “normal” uninstall via Programs and Features (aka Method 1 in the tip). The Normal uninstall is designed with the assumption that you will be re-installing Office. It does NOT delete everything. It leaves configuration files like NORMAL.DOTM and other templates etc. and it also leaves configuration Registry entries. These “carry-overs” may contain corruption that is causing your problem.