Mike: When you're in Windows, the operating environment won't let you modify certain aspects of certain files. That's why I advised for you to exit Windows completely. This may be moot now, but I need to clarify my earlier message: I'd forgotten that DOS only recognizes 8.3 filenames. So in true DOS your LOGOW.SYS.BMP file would appear as LOGOWS~1.BMP. So the DOS command would look like this: C:WINDOWS>ren logows~1.bmp logow.sys(enter). Also, I think the Windows startup and shut down screens are limited to 256 colors.