If your Mac is password protected, the first screen you see after starting up is the login screen. This screen contains the default image of Mac OS X 10.5 Leopard, which can get boring after a while.
Loginox is an application which lets you easily customize the login screen.
Use Loginox to change the login background image with a single Drag-and-Drop.
Why navigate through all the folders on your hard disk? Drag a JPG image from anywhere and drop it into the main window of Loginox. A simple click on the "set new login image" button will change the login background image.
The image size of the default image is 2560 x 1600 and has a ratio 8/5. You can prepare your images with Sizerox to have the right dimension and ratio for your customized login screen.
For switching back to the Leopard default login background image click on the "Reset to default" button.