Center beeps on Simulator?

[flashbang]

Posted this on the wiki issue page but maybe I am doing somethig wrong.
Is it me, or do the center beeps not beep on the c9x simulator output tab? I ticed all three pots on the center beep line in the model setup tab. Also the beep buton does not turn red when the pots hit center.
TIA

[Romolo]

Please always post the firmware you have selected in preferences....
Beeps depend on the simulated firmware... so telling: "doesn't work" without knowing the firmware you are using, makes search for bug only more complex.
Thanks in advance for your collaboration...

[flashbang]

I'm sorry I forgot to add.
C9X Version 0.59 r849 Apr 21, 2012- Windows 7
ER9x V1.5648-erez R760

and
C9X Version 0.62 r870 Apr 24, 2012- Windows 7
ER9x V1.5648-erez R760

[flashbang]

Also does not work on
C9X Version 0.76 r1008 May 12, 2012- Windows 7
ER9x R762

[Romolo]

the beep emulation is part of the firmware...
We will submit a patch to Mike...