Amplitude 5 Sounds Different as Plugin

[erratic]

I am using the newest version of Amplitude 5. When I use the program as a stand alone, it sounds fine. When I use it as a plugin in an audio track it sounds like the amp is sitting in a huge room, making a moderate reverb or chorus sound. Nothing has changed about the preset. I have no idea what is going on. I have watched videos on how to add Amplitude 5 in Protools and did exactly what they said, step by step. Any ideas?

[JoelG]

Do you have any other plugins enabled on the Master output, or any Aux tracks the Amplitube track would be going through?

Joel