Mini beeping SOS and freezing grey bar on startup
Help,
I have a brand-new (yesterday) mac mini, was all working fine. Then used software updated to upgrade to iTunes 10.5.2 and the latest EFI (at the same time).
On reboot, it didn't start, and now when I turn it on it beeps SOS in morse code, then you get the apple chime, then it freezes 2/3 of the way through the grey startup progress bar.
The support website suggests Apple/Command/P+R and other keyboards combinations, but I have the wireless keyboard and none of the key options appear to do anything, even though the keyboard is on and I am pressing the key combos when the startup chime is still playing.
Help please! Thanks
Mac mini, Mac OS X (10.7.2)