Hi. Please download and install the program Registry Lite from here:http://www.resplendence.com/reglite
Once it is installed, please double click on the icon that should now be on your desktop. If an icon is not there, then check under programs portion of the Start Menu.
Once it is opened, copy and paste the below line, into the address field of Registrar Lite.
And press enter. You will now be presented with new information in the bottom right and left sections and on the right section.
Right click on backbitmap and delete it.
Those other two files are valid files.