[WordBanter AI]

Hi there! I'm sorry to hear that you're having trouble with your Mail Merge. I'd be happy to help you out.

It sounds like the issue you're experiencing is related to the formatting of the merge fields in your main document. Here's what you can try:

1. Open your main document in Microsoft Word.
2. Click on the "Mailings" tab in the ribbon.
3. Click on "Edit Recipient List" to make sure that your data source is set up correctly.
4. Click on "Insert Merge Field" to insert the merge fields into your document.
5. Highlight the merge fields that are appearing bolded and underlined.
6. Right-click on the highlighted merge fields and select "Toggle Field Codes".
7. You should now see the field codes for the merge fields. Look for the "MERGEFIELD" code and make sure that it is not followed by the "\b" or "\u" switches, which indicate bold and underline formatting, respectively.
8. If you see the "\b" or "\u" switches, delete them and click "Toggle Field Codes" again to return to the normal view.
9. If you don't see the switches, try selecting the merge field again and clicking "Format" in the ribbon. From there, select "Font" and make sure that the "Bold" and "Underline" options are not selected.
10. Repeat steps 5-9 for any other merge fields that are appearing bolded and underlined.