I was reading some other similar topics and saw resetting the PRAM as a possible solution. So I figured I'd try it.
Except when I hold down Command-Option-P-R when starting up his MacBook, +nothing happens+. It boots up just like always. I tried several times, and it's always the same result. I held down the buttons before I heard the chime, after I heard the chime, before I saw the grey screen, after I saw the grey screen, etc. etc.. I reset the PMU, and I don't know what else to do. It's a white MacBook (2008) running the latest version of Snow Leopard.
Does anyone know what's wrong??
Thanks in advance!
MacBook Pro Unibody 2.4 GHz Intel Core 2 Duo processor, Mac OS X (10.6.4), 250 GB HD, SuperDrive, 4 GB RAM, 1TB external HD