I love my pathfinder. I have a 99.5, which I have owned for almost five years. It is a great reliable truck for camping, commuting, offroading and even picking up groceries.
Although it is gas thirsty, that is to be somewhat expected from an SUV. I also have my truck outfitted to take offroad, so it's a bit heavier, and less aerodynamic than Nissan intended.
My truck has never let me down, on or offroad.
Anyone interested in more information on any year pathfinder should check out the Nissan Pathfinder Off Road Association - http://www.nissanpathfinders.net
Check to see if there is a small pin hole somewhere on the deck. A lot of stereos have a hole like this, with a button inside to reset the cd, or spew it out. A straightened paperclip usually does the trick. Also, check your owner's manual for info to reset the deck.