This is a new Intel Mac Mini with Wireless Apple keyboard.
It worked fine for a few weeks.
Now, when I switch it on, the white LED on the front lights, power goes to USB mouse LED, but there no monitor output and no startup sound.
I've tried this with a USB Mac keyboard too - this doesn't work either (caps lock doesn't toggle on/off).
The only interaction I can do with it is to hold down the power button for a few seconds to switch it off.
Any Mac users know what could be wrong?
I'm hoping it's a user error