What makes you happy ?

Take mini to Apple reseller. They fit memory that takes it to 2gb. They test, all is good.
I bring it home, switch on. Start Bon Echo, Xchat, Thunderbird and all is good.
Go gym
Come back to find monitor has no input. Mini light is on but no-one is home. No keypress does anything.
Press the button on the back once.
That killed it.
No light.
It hadn’t moved at all from working to not. But it’s dead.
Maybe it’s so overwhelmed with getting some decent memory it’s gone to have a lie down.
But it still looks dead.
Not useful, not at all.