I have a new 11' Mac Air.
Snow leopard OS.
1.6G chip
4Gb ram
160 Gb memory.
Only a few weeks old and been working fine.
While it was asleep, I plugged in a USB rechargable battery + the cable LAN dongle and then woke the machine up.
All was fine for 30 seconds or so. I went to switch off the wifi when that top right part of the screen's icons disappeared. ie wifi, time etc.
I thought I'd restart it.
It shut down (after telling cyberduck to shut up) and then it "hung" at the white screen, Apple symbol and the little bars in a circle going around.
Tried shutting it down and leaving it for a bit and restarting it.
I have done the Hardware diagnostics check, all ok.
I have tried the repair diagnostics (looks like a "DOS" (I know!!) screen)
and tried rebooting from there, didn't work. Back to the "hung" start screen.
I don't have the rescue USB with me, I am not at home. Any other thoughts?
ta