When I have ReDrum playing as my only module, everything is fine.

When I add another module (i.e.: NN19 or NN-XT); the sound from the additional module plays with ReDrum.
I'll press a pad on my MPC it will trigger the corresponding sound no prob
so now, I'll have Redrum on Ch1 and NN19 on Ch2... Now, when I press that same pad assigned to Redrum it plays the kick, as well as which ever sound is assigned to the NN19 (i.e. - Heavy Guitar). (NN19 plays perfectly by itself on its assigned channel (Ch2), but is also playing on Ch. 1 with Redrum.) (Also, if I go to the mixer and MUTE Ch 2, the sound does not play on Ch 1.

im using pro tools 8 digi002 reason 4 and a mpc 2500

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if that ^^^ didnt make sense maybe this below will better explain my problem lol

i have everything hooked up right..i here the sounds coming from reason...but im triggering 2 different sounds at once..ill record a loop melody with a thor sound, add a different sound from reason, i go to my 2nd midi channel on the mpc (2C), press play and itll play both sounds, like i recorded both of the sounds on both tracks/midi channels???
what the feeeezy??? plllleeeaaase help!!!

i have reason 4, protools 8, digi002 and mpc2500

Take a look at Reason's sequencer, and make sure only the transport track is selected (and not any instrument track). Otherwise, you'll get doubles.

Note that by default, when you create a device, Reason automatically selects its track on the sequencer panel.

Hope this helps.