Anybody know how I can use my Mac, Guitar Rig 4, and M-audio fast track pro to run guitar rig 4 into my combo amp?

I'm basically trying to get the tones from guitar rig 4 to come out of my amp

Thanks, drew
guitar>computer>speaker out of your computation machine>cable which has a guitar jack on the other end(adapter possibly)>amp?

that probably wont work...
I think you can. I somehow managed to play mp3s from my computer to my amp, so I don't see why Guitar Rig won't work.