Everything works great installing 10.7.0 on EP45-UD3L except for PCI card installed in PCI slot #1. I have a wireless wifi card (Asus WL-138g-v2 which should work OOB) in PCI slot 1 and a firewire card in PCI slot 2. The firewire card in slot 2 is detected, but the wireless card in slot 1 isn't. I swapped the positions of these two cards and concluded that any PCI card plugged into PCI slot 1 won't get detected.