* Start Outlook and go to your Inbox
* Go to Standss Outlook Addins -> select EmailMerge -> More -> select Settings...
* On the EmailMerge Settings Tab, click on the HTML Routine tab
* Choose method B from the list (or choose A if you had previously chosen B). Method A works best on most computers -> Click OK.
* Run the EmailMerge Wizard again and see if this solve.