segmentation error on Linux commandline

I am using Pianoteq4, Linux version, on a Fedora 17 32-bit system. I am having a problem with the commandline usage on my EeePC 900 netbook. I am trying to convert a .mid file to a .wav file. But the process is not completed, and the resulting .wav file is unplayable.  This is what I type and see on my terminal:

[m.tarenskeen@EeePC i386]$ ./Pianoteq\ 4 --headless --midi test.mid --wav test.wav
Current preset: D4 Classical BA, instrument: Grand D4
Writing to test.wav, quality: 0
....................................................................................................Segmentation fault (core dumped)

The strange thing is that on my Dell D600, with the same Pianoteq and Fedora versions running, the same action is done without problems. Also when I export as wav files using the full GUI menu everything is workng fine.

Anything I can do to trace what causes my problem so that it can be fixed?
Or maybe it isn't even Pianoteq error?
BTW: same thing happens with the Beta version. (Where has the beta forum gone?)