Well that was interesting....

Alt-F9 flashes with brief activity but nothing shows up.

But Control Panel when I click on Microsoft Office 2010 ...actually Home and Student 2010.. brings up a setup error screen saying An Office 2003 installation is corrupted and setup can not continue.

I upgraded from Word 2003 years ago.. nothing shows in the Control Panel for Office 2003.

I do still have Office Front Page 2003.. have never found a replacement I like and just not into the learning curve of sharepoint or whatever it is and FrontPage works fine for limited use I need..

But maybe that is the issue.. the Front Page was standalone version not part of full Office 2003.

I've been using Word 2010 a long time and never had the Mail Merge appear but may have been related to a recent update.

Appreciate the ideas, at least I know I am not overlooking something obviously.

Also ran Revo Uninstaller Pro and nothing related to Office 2003 other than FrontPage.