Originally posted by JamesKass:
<STRONG>Try hitting the little reset button. That cured it for me, for some strange reason...

</STRONG>
I did a number of software upgrades, including of the G4 ROM. Now it looks fine. However, the downside is that I don't know, what the culprit was. I never got to trying the reset. Oh, yeah, I turned the device on and off with its power switch, too.
Who knows. I hope Formac is listening.
Thank you very much for your tip!
Dominik