To: H.M. Murduck....
Assuming the startup disk you have is identical to the OS you are running onthe Quadra you may be able to simply boot from the CD-ROM (holding down the "C" key while starting up so the Mac looks for it's OS in the CD Drive rather than the Hard drive). On occasion, copying the Finder from the CD to the System Folder may not meet your need. Either way, fromthe startup CD you can reinstall the System Software. While you may lose some data you will heal your Qudra.
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to: DKStar218..
Are you getting the error message on boot?
Shalll I assume you are booting extensions off my holding down the SHIFT key???
When you say you "played around" with some extensions...are we talking about disabling them or tinkering with them in a resource editor like ResEdit??
Trying to get a grip on the problem before offering a bonehead solution
See if you can boot while holding the SPACE BAR and get into your extension manager. Use the base OS set (if you are able) and restart.
Additionally you can zap the PRAM (startup holding APPLE-OPTION-P-R for three chimes) and rebuild the desktop (simple release the P key after zapping the PRAM until you are prompted to rebuild)..
As for booting into Open Firmware -
Option-Apple-O-F
once you are in to the prompt try the following (case sensitive!)
reset-NVRAM
reset-all
<RETURN>
Hope this helps or you can hail me for more at
macgeneral@mac.com
macgeneral