Powerup failure...
When I press the power button I hear the apple chimes, then the sign into TIGER ( Apple Symbol ) with the paddle wheel spinning for a second and THEN COMPLETE SHUT DOWN.
Just before the shut down I hear a click.
I've disconnected all power USB/FIREWIRE HUBS and just have the mouse and keyboard pluged into the back of my said MAC.
Any ideas please to give me a heads up before I drive down to my mac shop tomorrow?