1. Open the letter parameters in Mail.
2. Click Send to Word Merge Wizard.
3. Open the letter having the issue.
4. Delete the field(s) that are not currently pulling in correctly.
5. Re-Insert the field(s) from the 'Insert Raiser's Edge field' drop down (located in Add-ins when using Office 2007 or 2010).
6. Click Save and Return to RE7.
7. Click Finish in the wizard to create the letters.

The field(s) should now appear correctly in the letters.