VST exporting problem

Having trouble with LMMS? Ask about it here.
Hello there,
I was exporting a song with a VST plugin in it (DSK Brass) and instead of the ordinary sound it just sounded like a loud beeping noise. What is wrong?

LMMS regards,
SandyCastleton
please post your:
* OS (+service-pack-ver)
* lmms vers
* if any, name of theme
* hardware specification (ram & soundcard is the most imortant)
* lmms sound device chosen
* perhaps a sound-file
* best download links of the failing vst's

but a guess in forehand :p would be your export settings, let us have a screenie of those too