MBA Turns on... Then off...

[ShrubbySoup]

Hi, sorry if this is short and sharp. but i hold the power button to turn my mac off after a crash. Now it comes on with a grey screen, looks like a loading bar appears and goes straight off... PLEASE HELP i have had this only for a week :S Thanks

 

[Mrbobb]

The crash may had garbled the OS, u may have to re-install OS. Option-Boot first see if it comes up in recovery mode, wo dying.

A week... are u trying to hack the thing?