Hello Jspark,
Please can you try out this version and see if it fixes the problem. _Please_ let me know whether it works or not.
(Everybody, this is close to a beta that I will be releasing soon so please reports any problems you find.)
http://pianobooster.sourceforge.net/tempfiles/PianoBoosterInstall-0-6-3-svn.exeIf it fails please copy and paste the output from the console window here.
Thanks
Louis