06 Rough Idle (I think) Please Read

Hey all -

I just traded in my 04 3.0Q with 82k on the clock for an 06 2.0TQ certified with 17k on the clock. Love the new car, although I'm missing some of the features of the tech package....

Anyway -

When the car is stopped, but in drive (foot on the brake) I'm getting a noticeable amount of vehicle vibration from the engine. It's not like it's idling really low - it's consistent at about 900RPMs - and when I hit the gas and am driving around, it goes away. The sales rep tells me it's the fuel injectors (it goes away if I put it in park) but I'm not sure.

Again, this thing is certified, so if there's a problem, I want to get it fixed. However the 2.0T is new to me, so I'm looking to you B7 owners to tell me if this is something you experience as normal, or if this is something you haven't ever experienced....

Thanks!