In the documentation of the driver (ag3499x notes.pdf) I found the following:
To specify multiple slots, you should separate the slot configuration with a semicolon:
"DriverSetup=slot1:N2260A:2;slot2:N2260A:2D"
So, if you have multiple modules, you'll need to change your driver setup to reflect this.
Once you're done, you will have to recreate your switch executive virtual device, as it learns about available channels at the creation time and cannot be changed at a later point.
If you are using NISE 2.1, and if you have already created enough of a configuration that you don't want to lose, you may export the current configuration to excel spreadsheet, then delete it in max, recreate it using the same device (with updated driver setup) and overwrite the configured hardwires, routes, etc. by using the excel->NISE import example.
Hope this helps!
Message Edited by Srđan Zirojević on 10-12-2006 11:29 AM