You can't actually see anything visibly wrong until the PCI card is attached. It is a really slight defect, but enough to ruin it. If I grab the case and try to bend the back panel inward, the card moves toward the proper position. But there is no way fix it without major reconstruction of the case.
In the picture you can see the card bracket properly mounted on the rear panel, but the contacts are not fully inserted into the motherboard.
I emailed Cooler Master but I doubt they will do anything since I got this used. Emailed the eBay seller who was totally incompetent, and opened a case with eBay.
I think I will buy a Lian Li mid-tower.