I've got the same problem here. Two days ago I decided to give Ronald's LyX-port a try (instead of using the x11-version) and installed teTeX, ghostscript 8 and imagemagick with Gerben Wierda's installer. After that I installed LyX/Mac and was happy with it working nicely - untill I wanted to preview the document, which failed for all the options given (dvi, pdf, pdflatex,...).
I loged out and in again after the installation, i did "edit -> reconfigure" (or vice versa) and I just checked my teTeX-installation - it works. What's disturbing me is that i don't understand completely which software is required and where it has to be installed and how to be linked with LyX/Aqua in order to get the preview working.
I installed MacDviX - no result - they don't want to "play" together....
Ah, another thing: when in lyx i do "view -> dvi" lyx pretends to do something - but does not produce an output (which would be a .dvi-file in the same directory as the original .lyx-file, wouldn't it?)
Any help on this or any ideas where i missed a step when setting up LyX/Mac is very, very welcome :)
Thanks, Katrin
