I own a 2004 Acura TSX with navigation. When I start my car in the morning, the navigaion screen is dull. After about 5 minutes, it brightens up and functions normally. When I pointed this out to the dealer, they replaced the screen, but there has been no change. It is still dull upon start up. The dealer now tells me that after looking at the other TSX's in stock, they all do the same thing...so it must be normal. My question is...is anyone else having this problem? Is is fixable? Is is a generic flaw in the system? How would you advise me to proceed?