Radio Display not working but i have sound

[mdhawk]

Im not sure if the cold weather here has anything to do with it. I got in my truck this morning and I have no display. I can change the stations on the steering wheel and music comes out but no display. I recently had my BB tune installed. Does the security relearn have anything to do with that? Anyone else have that problem and how did you fix it? Its an 08 Tahoe

 

[mdhawk]

I just checked it again and now its working. I guess the cold had something to do with it.... Although 18 Deg. isn't that extreme.