[Zope] _underline_ broken in STXNG?

Hi, We're using Zope 2.4.3 on a linux SuSE 7.0 system. In Stx words could be underlined by surrounding them with two underscores. This dosn't work with StxNG. I took a look at the StxNG code and found a definiton for underlined words, but it doensn't work. I tried this on Zope 2.5.0, but it didn't work either. How can the 'underlinetag' be turned on again? MfG Steffen -- Physiker sind Kinder, die nie richtig erwachsen geworden sind.