the sequence mentioned resets PRAM. this stores bootup memory and some other settings including date and time, etc. basically because of the way the firmware behaves, there can be the odd conflict so firmware rebuilding helps.
if you're using a PowerPC chip, there's also another setting to repair. NVRAM through open firmware. as you're about to boot, hold down command option O and F. (open firmware) (this is an advanced procedure and should be undertaken WHEN NECESSARY) when open firmware starts, you will be greeted by a text interface. type the following reset-nvram set-defaults reset-all it's worth noting here that with each instruction, please press enter. on the final instruction, enter should restart the system. lew On 10 Jan 2012, at 17:12, Ray Foret Jr wrote: > Never heard of that procedure before. VO+P+r? That would be interesting to > do with only one control key on the left side. > > Just what exactly does that sequence do when used as you describe? > > > Sincerely, > The Constantly Barefooted Ray!!! > > Now a very proud and happy Mac user!!! > > Skype name: > barefootedray > > Facebook: > facebook.com/ray.foretjr.1 > > > > On Jan 10, 2012, at 12:35 AM, Anne Robertson wrote: > >> Hello Richard, >> >> One thing that hasn't yet been suggested is initialising the PRAM. To do >> this, shut down your machine, then hold down the Command, Option, letter P >> and letter R keys and press the Power key. Keep holding down the four keys >> until you've heard the start up chime at least 3 times. Then release them >> and the machine will boot as usual. >> >> This procedure can cure all kinds of strange behaviour. >> >> Cheers, >> >> Anne >> >> -- >> You received this message because you are subscribed to the Google Groups >> "MacVisionaries" group. >> To post to this group, send email to macvisionaries@googlegroups.com. >> To unsubscribe from this group, send email to >> macvisionaries+unsubscr...@googlegroups.com. >> For more options, visit this group at >> http://groups.google.com/group/macvisionaries?hl=en. >> > > > -- > You received this message because you are subscribed to the Google Groups > "MacVisionaries" group. > To post to this group, send email to macvisionaries@googlegroups.com. > To unsubscribe from this group, send email to > macvisionaries+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/macvisionaries?hl=en. Mr. L. Alexander. Free Macs For The Blind. E-Mail: freemacsforthebl...@mac-access.net Direct line: 07936 877500 Twitter: @macsfortheblind Free Macs For The blind is a charity project supplying older but working apple macs for blind and visually impaired people throughout the UK FOR FREE! Do you have an old unwanted mac, any hardware, software, old PC's, etc or a copy of outspoken 9.2 you would be willing to donate? please get in touch. Mac Access Dot Net; The British Mac Accessibility Network, we're here to help anybody disabled with anything Apple! http://www.mac-access.net -- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To post to this group, send email to macvisionaries@googlegroups.com. To unsubscribe from this group, send email to macvisionaries+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/macvisionaries?hl=en.
