Don't know which one is right for you? Well answer these questions:
1. Do you know what ResEdit is and do you have it?
2. Can you and are you comfortable using ResEdit to edit your system?
3. Is that progress bar that appears at startup really that important and worth the work with ResEdit?
If you answered "Yes" to all of the above questions you want the StartupScreen, if you answered "No" to one or more the you should use the SimpleScreen. The only real difference between the two is the StartupScreen keeps the progress bar during startup. If you still aren't sure start with the SimpleScreen, which is more easily removed and see what you think. Any feedback is welcome - use the mail shortcut in the Startup Set folder. I have provided instructions below to install both the StartupScreen and the SimpleScreen. The SimpleScreen overwrites the StartupScreen f you want to know.
To install a SimpleScreen: 
1. Choose and select the clip picture file for your computer: iMac, iBook, Power Mac, or Power Book,etc. If you have a request for a different StartupScreen or SimpleScreen write me with the mail shortcut and I can provide you with a customized version.
2. Drag the StartupScreen file to your System Folder.
3. Restart. Notice the the new Startup Screen! Cool.
To install a StartupScreen: 
1. Open the System folder in your hard drive.
2. Locate "System" and copy it. (Select Duplicate from the File menu) 
3. Using ResEdit open the new "System copy".
4. Choose and select the clip picture file for your computer: iMac, iBook, Power Mac, or Power Book,etc. If you have a request for a different StartupScreen or SimpleScreen write me with the mail shortcut and I can provide you with a customized version.
5. Copy the image.
6. Back in the System copy open the PICT resource. 
7. Select the resource withn PICT called -16506 and open it.
8. Now paste the image.
9. Quit ResEdit.
10. Back in the System folder rename "System" to "System.1"
11. Rename "System copy" to "System"
12. Restart. Notice the the new Startup Screen! Cool.
13. Back in the System folder locate "System.1". You may want to delete this file but doing this is not always wise. You may want to keep it for a while, making sure that everything is working. Just keep it somewhere other than the system folder (I keep mine in the Utilities folder).
To uninstall a SimpleScreen: 
If you want to later go back to the old startup screen, just remove the StartupScreen file from your System Folder. You can put a different one in its place too!
To uninstall a StartupScreen: 
If you want to later go back to the old startup screen,you can do one of two things.
1) Reinstall you're system software. Whenever you reinstall or install system software the currrent StartupScrren will be erased. That means hold on the the clip picture files because if you ever upgrade to a new system or reinstall your system you will need to re-place your iMac Startup screen.
2) Install one of the Standard Mac Startups (the one that matches your system) over the previous screen using the "To install a StartupScreen" instructions.
Version History: 
Version 2.0 - Added PM G4, Bondi iMac, PM G3 Beige, and Standard Mac; changed the readme file.
Version 1.0.1 - Fixed the mail shortcut. (typo address)
Version 1.0 - Inital Release.
Please Note: I am not responsable if you computer has problems after using this Startup Screen, especialy if you deleted the old System. This does not mean that these files will destroy your system (after all, I use them!) but in case something weird happens I am just telling you that it isn't my fault. I am, however, happy to answer questions or help you if a crash happens. Thanks for using my startup screens and supporting The iMac Infocenter!
