I'm sorry to hear that. We're going to have to get that repaired. I saw your helpdesk ticket. I don't know of any electronic service centers in Belgium, but if you know of one, I'd love to hear about it. Our German dealer can do some repairs, I could possibly hook you up with him.
Can you check the DC outputs on the GT? Knowing whether the outputs are still providing 9VDC will give us our first clue as to where the problem may lie.