Cannot convert Word file with comments

I have a Word file with unusual comments. When I try to convert the file to translatable format, I receive the error "Object reference not set to an instance of an object".

This error disappears when I delete the comments from the file.

The comments look like this:

I don't recall ever seeing the "Reply" and "Resolve" options in a Word comment box before.

Any ideas about what could be wrong?

Regards,

Bruce Campbell

ASAP Language Services