Bob,
If you put any effect that has a meter in the master effects insert and move the fader the signal to that effect changes. It should not. It's an insert.
Now in live sound your drive rack ( EQ, compressor etc. ) do come after the master faders so in some instances the way RB is wired is OK. It's just not what other programs do. Nor is it wired as an insert should be. Sonar has this insert before the master fader. Audition gives you a choice . The idea is to be able to move the fader without having the drive level to the inserted effect change. It's not a big deal to me however it's not conventional.
Another way to look at it also, and this may be PG's view, is that the Master is really the control on your soundcard.


John
ESI Gigaport HD+
Lenovo Turion II /4 Gig Ram/ Win7x64 be
15.6" Monitor
"The only Band is a Real Band"
www.wintertexaninfo.com/BANDS/JohnnyD.php