OMEdit crashes when starting!

I frequently install the nightly builds op openmodelica for the mac using ports.

Using omc and OMShell works oke. But for version 1.9 i was not able to get OMEdit working. It is there under applications/macports/. OMShell is also there in applications/macports/ and runs oke. Two folders are there, applications/macports/, Python 2.7 and Qt4.

It seems that there is a problem with Qt4. Do i need to set some environment variables?

kind regards
Dick