Import RTF > Lyx 1.6 error

[Dr. Joachim K. Rennstich]

I am trying to import a RTF document into Lyx 1.6 (Mac OS X 10.5.5,  
Intel) through the "File > Import > Rich Text Format..." command but  
get the following error:

An error occurred whilst running rtf2latex2e 'whateverfile.rtf'


I have been looking up rtf2latex2e and discovered that apparently it  
is not supported on Mac OS X unless you compile the UNIX version. My  
question is: how can I make the command work? What do I need to  
install in addition and how can I do that?

Thanks
- Joachim