I'm having trouble with my facebook app the stock facebook app that came installed on my EVO. ever since i updated to froyo anytime i want to refresh my news feed it says "an error had occured while fetching data [null]" I dont know what the problem is and i want to un-install the app and then re-install it like i said its the stock facebook app so i dont know how to un-install and re install stock apps......anybody?