Hey todd_r,
I noticed your question come down the wire and thought I'd offer some help.
We don't do any testing of RX in a Wine environment and it's not
officially supported there. I don't know much about the platform, but
it's possible that Wine doesn't have support for GDI+. Under Windows, RX
uses GDI+ to perform its font rendering. It uses the Tahoma font which should be
installed by default on all versions of Windows.
Please make sure that the version of Wine you're using has GDI+ implemented
or has Tahoma properly installed.