Had my NIB WOZ delivered a couple of weeks ago and yesterday, with less than 100 plays on it, I encountered the same problem with loose hex screws on the door. Pulled the castle playfield yesterday and going to reassemble tonight. The shaft on the motor that the door attaches to really should have had a flat spot machined onto it that the screws could land on. The game is amazing, it's just a little disappointing to have to start disassembling things within 2 weeks of unboxing a $8k machine.