Export to RTF, Unicode, Auto Grow and Crystal Report

So, after many praisals of Crystal Report, finnally we have our bad luck.
We use plenty of text of mixed languages such Chinese, English etc.,
however, Crystal Report has problem with its unicode support. Even though
unicode text can be displayed normally, the least height of detail field
when "Can Grow" ticked is always shorted than necessary.

At first I tried to append new empty lines to the detail field but it
doesn't work, Crystal report remove them automatically when display the
report. So does new lines with spaces.

In the end, I found Crystal report won't remove Chr(255), so it was fixed.

By the way, the line height is adequate when previewed in Crystal report.