rfbProcessClientProtocolVersion: not a valid RFB client

[Jonas Bark]

Hello,
I tried to connect my Psion machine with the VNC Server under 
Ubuntu/Linux and received those messages in the log files.
On the Psion I use the TightVNC client from 
http://utopia.knoware.nl/~hlub/rlwrap/ or the one from 
http://www.geocities.com/giulopresti/handhelds/vnc-epoc.html No other 
viewer are working.
The messages are the same. I know that both are very old but it actually 
worked with a TightVNC server from Windows XP.

So may I disable this Protocol check somehow?

Thank you, Jonas