2001 Chrysler Town and Country overhead display

My miles to empty, mileage, outside temp, etc. My overhead display no longer displays. I used to be able to give it a slap with my hand, and it would show up, and then it started to fade and now it is just gone. I know that this is not repair threatening, but I have gotten very used to that, and miss it so very much. I refuse to go to the shop, and someone tell me that the whole display, computer, or whatever it is, has to be completely replaced. It has been acting like a short, but I would appreciate help with this problem, before I seek repair. Thank you, for this great site.
Ms. Hudson