Numbered Steps to Reproduce Problem:
1) Download source packet here: http://johngames.com/displaytext.zip
2) Compile and run.
Code Snippet (if applicable) to Reproduce Problem:
Due to requiring additional files, I've included a 2kb mini project that reproduces the problem.
Expected Results:

Actual Results:

Does the problem occur:
Every time? Or how often? Every time.
In other games? Unknown
In other user accounts? Yes.
On other computers? Yes.
When does the problem NOT occur? Unknown
Did the problem NOT occur in any earlier versions? If so, what was the last version that worked? Previous version did not have maptext
Workarounds:
Create a bunch of write lines and break it up by line? Though such a workaround would need you to know how long each line could be, a hard thing to calculate in non mono space fonts.