My computer was turned off improperly and now the screen saver is extra large with a very large cursor.

Hi jjbender3,

What Operating System (Windows XP, Vista, 7) are you using? You can try to do a System Restore to go back to a previous date prior to the problem.
To do System Restore in XP:

1.) Click Start, point to All Programs, point to Accessories, point to System Tools, and then click System Restore.
2.) On the Welcome to System Restore page, click to select the Restore my computer to an earlier time option, and then click Next.
3.) On the Select a Restore Point page, click the most recent system restore point in the On this list, click a restore point list, and then click Next.
4.) On the Confirm Restore Point Selection page, click Next. System Restore restores the previous Windows XP configuration, and then restarts the computer.
5.) Log in to the computer. Then click OK on the System Restore Restoration Complete page.

To do System Restore in Vista and 7:

1.) Type restore into the Start menu search box, and you'll immediately see System Restore at the top of the start menu. Click it.
2.) Click one of the restore point, and you will have to confirm and then restart your computer to roll the system back.

Hope this helps.