If a program (or programs) you are using is not working properly, try un-installing, restarting the computer and then re-installing that program before re-installing the entire operating system. To do this, click Start, Settings, Control Panel, then double-click the Add or Remove Programs Control Panel. Highlight the program you want to remove, then click the Add/Remove button. If a message appears that refers to deleting shared files, always choose to keep the shared file(s); do not delete them. It is a good idea to restart your computer after removing the program. You can then re-install the program. If this still does not fix the problem, then proceed with the steps to re-install the operating system.