You have two kidneys, each about the size of a fist, located on either side of the spine at the bottom of the rib cage. Each kidney contains about one million functioning units called nephrons. A nephron consists of a filtering unit of tiny blood vessels, called a glomerulus, which is attached to a tubule. When blood enters the glomerulus, it is filtered and the remaining fluid then passes through the tubule.
In the first case, each time the computer starts up, the question mark appears and flashes for a few seconds, then disappears. The cause of this symptom is that there is no hard drive selected in the Startup control panel. Remember that selected on the Macintosh means that an icon is darker than the other.
Hey Gary, The bar at the bottom of the screen that appears when you click a download or if a pop-up is blocked cannot be disabled. With that said, it shouldn't be a regular occurrence that the bar appears with a message when you haven't prompted it to action with a download (which will always activate the bar).