i did replace the dll and did notice that the dll was just a bit larger (5kb) than the one i downloaded. i am not sure if that is because i may have had the latest version or not. Are we at the point where i need to consider having best buy do this? or should i have a bit more patience? if i pulled the files/file size from the winsxs folder on this laptop and my daughters and compared, the files, would that help identify a corrupt file?