There, there, don't cry. Everything will be fine.
The Eve/net menu only appears when the H8000 recognises its internal evenet hardware, so it would appear that this is not happening.
If you feel confident enough, you could open up the box and check that U106 is firmly socketed – this is the large square chip near the red and green leds at the front of the motherboard.
If this doesn't fix it or you'd sooner not, it will need to come for service.