Datacolor User to User Support Group.

I have another question regarding monitor calibration.

when i first calibrated my monitor i found that the adjustment for the 
brightness didn't do anything to the target. nothing changed while i 
moved the brightness from 1% to 100%, the 4 squares remained jet black. 
i decided to just set the brightness to 100% and carried on and it 
produced a, what seemed to be good profile, though i do notice that in 
some cases the mid tones of some images tended to lack definition.

  deciding today that i'd update my monitor profile i  proceeded to do 
things differently and keep the brightness at 30% and continued on to 
the profiling with a rather nasty result.  i read in the help file that 
if this occurred it is best to default to the factory brightness 
setting which in this case is 30% for the La Cie electron 22 blue 4. it 
appears that the profile is compensating for the darkness of the 
settings and is tending to make darker blacks more gray with gray field 
midtones.

does anyone know or have experience with what the optimum brightness 
percentage is for the La Cie electron blue monitor?

thanks
ghi-