Your browser does not support this print option. Error with an apostrophe ' in the subject line

Kris von Mach dev@swishmail.com
Fri, 18 Jan 2002 14:14:23 -0500 

Hi,

I am using IMP 3.1-cvs from Jan 12th.

And when you receive an email with an apostrophe in the subject line, and 
you view the email, you get this error popup window:

Your browser does not support this print option. Press Control/Option + P 
to print.

I have tested this in IE6 and Mozilla 0.9.7

Any ideas?
__
Kris.