There are several ways of moving the map around. Lets go through each of them.
Scroll bars
This is the most obvious way of moving the map about. The square slider between the arrows relates to the horizontal/vertical position of the displayed area relative to the whole map. By clicking on the left arrow the display area will shift to the left. To move the map further you can click the square and slide it as far as necessary.
Panning
If you move the mouse pointer near the edge of the map you will notice it change to a chevron symbol.
Now click the left mouse button to move the map in the direction of the chevrons. This way you can move in eight directions, move the mouse pointer near the corners of the map to move diagonally.
Grabber hand
To move the map more precisely it is often better to use the grabber hand. First change the cursor mode to Grabber hand. Use this to 'grab and slide' the map around in its window. Click any point on the map, hold down the left mouse button, and move the mouse. The mouse pointer will change to a hand symbol.
The blank areas will be redrawn in when you release the button.
Map overview
From the input pane select Overview. The current map view is shown as the purple rectangle in the map overview. Click and drag this rectangle to move the map to a new position.
Goto to coordinates
If you know the coordinates of the location you want see on the map then you go there directly. From the menu select Search/Go to coordinates to bring up the Go to position dialog.
The dialog already contains a set of coordinates. These signify the position at the centre of current map view. Use the Coordinate system drop down menu to select which type of geographical coordinates you wish to input. Now enter the coordinates and click the Go To button to see the location on the map.