[LAU] Qsynth: Why oh why

[lanas]

All,

  When choosing another sound from a soundfount such as the one
distributed by Fedora: FuildR3_GM (148398306 bytes) and having
the preview option on, why does Qsynth, from time to time, outputs a
disturbing loud noise instead of the chosen instrument ?  This runs on
Fedora 8 x86_64 and I reckon this could be considered as outdated.  Was
this bug fixed in recent versions ?

Cheers.