I say go into your MBII folder, delete the rgb.cfg; open Notepad, paste the code I write below and save it as rgb.cfg. Make sure its saved as a .cfg file, not as rgb.cfg.txt. Copy this new rgb.cfg file into your MBII folder. It should work now. The original file is probably read-only, or corrupted... at least this is what I think. However I dont have any idea why should this file either be in read-only mode, or be corrupted...