|It could be from a number or reasons. |
If you can see it by using the "window" key then do as above.
If not it could be that your monitor needs an adjustment. There usually is a few buttons to select the different choices or a menu to select then some plus and minus keys to change settings.
It is possible that your selection of screen size is too far off from the monitor and you'd have to select if from display properties. Like 600x800 or such to match your display dimensions.
1/3 of highway deaths are caused by drunks. The rest are by people who can't drive any better than a drunk.