sleep indicator light on MacBook

What does it means when the sleep indicator light is glowing steady (not pulsing) on a Late 2007 MacBook?
CZ wrote on :

What does it means when the sleep indicator light is glowing steady (not pulsing) on a Late 2007 MacBook?

TIA

nospamatall replied on :

CZ wrote:

What does it means when the sleep indicator light is glowing steady (not pulsing) on a Late 2007 MacBook?

TIA

On this iMac it seems to mean that the screen has gone to sleep but the system has not. That might help...

Andy