I have a Cougar MX500 case with a Gigabyte X99-UDP3 MB, and a nice 1000w PS. Everything works fine, except the case, when I put the front panel on, will not power up. Take it off, it works fine. Nothing appears to be in the way of it, the ckt board the switch is on, is up out of the way, so there appears to be nothing to stop it connecting. Cougar has very nicely shut down their customer service system until Feb 15, how nice. Any ideas? Any one else seen this? it seems like a nice enough case...