Hello everyone!
    I'll do my best in english...I'm French! And I have to warn you about this: I worked 11 years on
PC, but I'm on Mac only since 1 month...so, a true beginner!
Here is my computer:
Processeur   2.66 GHz Intel Core 2 Duo
Mémoire        4 Go 800 MHz  DDR2  SDRAM
Version du système:    Mac OS X 10.5.6 (9G55)
Now, to the question:
One week ago, I bought "PlugSound Pro", and installed it (together with the "Ilok Key", as one usually does).
My intention was to use this Sound Bank on "Digital Performer", which I have bought too, but which is, for now, to complicated for me... 
 
 So, before mastering DP, I have to use PlugSound Pro on GarageBand, far easier for me, for now.
The problem is that GarageBand apparently doesn't 
"know" that PlugSound is installed!  
So, here's the question:
- How couldl I tell to GarageBand to use "PlugSound Pro" instead of its default-sounds ? 
As I bought PlugSound, I asked if it was possible to use it with GarageBand, and they all answered that it was.....I hope they didn't fool me! 
 
    A last detail: I intend to use my CME midi-keyboard, as I did on PC, working on Cubase!
I thank you a lot for helping!
Friendly
Pierre