Hi

> think is that the screws snapped in transit. There aren't any screws
> missing, but the two that I would assume the power supply should be
> fixed to don't go anywhere. They have a standoff, and don't do
> anything - should they go right through the board
> Here's a picture just to check. What is the screw size
> http://www.flickr.com/photos/23732700@N05/3215661296/in/photostream/

Those are the screws which fix the heatsink to the pcb. Thats normal.
They have nothing to do with the fixing of the powersupply to the housing.

Florian