Text in 'Subject:' header lines is not shown in Re-Alpine 2.02(1266) when followed by '=?'. Text after '=?' is shown.
Example: Subject: example foo=?bar
My Re-Alpine 2.02 is running on Debian Lenny. It was patched only for Maildir support.
Please excuse that currently I don't have the time to debug this further.
I guess there is a problem with decoding MIME encoded lines.
BTW, I observed the problem when I wrote a Subject with a formula such as "p(x=1)=?"