I have seen this problem posted on Productivity Talk.

See the link below. One post seems to have the following solution:

We have used Chartscript for quite a few years and found that if you are all on the same server, the "auto correct" feature is "shared" with everyone! Delete that feature in Chartscript and only use the auto correct feature in your version of word. Also the abbreviation expander will do the same: Be the same for everyone, so we also do not use that but Shorthand instead.