In the last few days I have suddenly been plagued by my name appending at the end of words like "can't" "won't" and "isn't". So "won't" becomes "won'Monica".  The only new thing I have added to this machine was during a Webinar I used my own fat fingers as an example. I added 'Moncia' Replaced with 'Monica' to the AutoCorrect list. (Never had a problem using that on other PC's and there is a long story but I am working on a fresh install of Office 2010.)  I have since deleted that addition from AutoCorrect and checked through every potential example of said words in the autocorrect list to see if something weird got added in error. Nothing. I've been through my Auto Text - nothing even close in there. Checked the Macros list - nada so I have deleted my Normal.dotm - still happens. What have I missed? Where could this be coming from?

Hi,

First, have you check to see whether there is something like Replace t with "Monica"?

And is this issue occurs to only this document or all the document? Create a new file to check the issue.

Second, we can start Word in safe mode to check whether the issue is caused by some add-ins.