I own a brand new (200 miles) 2005 LE. First trip this weekend.
When I started the vehicle in the morning, the NAV screen remained gray and would not activate. After the vehicle warmed up, I turned it off and re-started - the NAV system worked fine.

After being parked for 4 hours in the cold, the screen came on but the "Enter" button would not activitate it.

Anyone else haivng these issues ?
:confused:

Interesting -- first time I've heard of this phenomena. Would be interested to see if it continues. I would call the dealer on this one...if it continues -- Wouldn't necessarily be surprised to see the LCD screen perform sluggishly in extreme cold -- but it shouldn't affect the processor -- as your symptoms would indicate.