Default [Q] 900V- now on At&t

Hey. Hope the general forum is the right place to shoot this question and I haven't seen anyone else ask as far as i can tell. But
I have the Verizon model and I did root it with the make it rain (w00t) but beyond that haven't done anything else. Long story short. I did get a domestic at&t sim to work in it and it does seem to work at h+ speeds (like 3.5g) and is a happy stable phone with the APNs all put in blah blah blah. Happy working at&t verizon bastard hybrid. So to the question. Is there any way to clear the 'PHONE ACTIVATION this SIM card is from an unknown source' Icon in the message tray? Any way to trick the phone that it is happy with this sim?
Any info would be great!
thanks
-Dave