I am using resource hacker to modify my ntoskrnl.exe file and put in a custom bitmap for the boot process. I make the new ntoskrnl.exe in a seperate directory and then reboot in safe mode with prompt and copy the newly modified ntolkrnl.exe to the system32 directory. When I reboot the screen just stays blank. Any ideas?? Does the bitmap need to be specifically 16 colors? If so, how can I do this with Photoshop?