You are using MediaShout 5, right?
This is something that we have seen before. Anytime this happens, it is directly related to the Font Style. Since this is a Windows issue, and not a MediaShout issue, there are only a few things that we can suggest:
1. Check your default printer. Try setting the Default to Microsoft XPS to see if that helps with this issue.
2. Also, check your Cue Setup settings (Tools > Settings > Cue Setup) to make sure they match on both computer with MediaShout on them.
3. Try copying the Font file from the one computer to the other to see if the Font file has possible gotten corrupted.
Let me know the results of the above suggestions. I would love to get this working properly for you!
Thanks and God Bless,