I am creating a custom boot screen for WinXP by using Resource hacker to replace the .bmp in my ntoskrnl.exe. I reboot in DOS safe mode and copy the ntoskrnl.exe file I created with my own custom .bmp to the system32 directory. When I restart, the screen just stays blank and nothing comes up. Does the bitmap need to be saved in 16 color for this to work? If so, how can I accomplish this from Photo shop?