Roger that! I'm experiencing the same problem precisely. Completely stumped. I have no failures turned on at all. As soon as I've touched down and employed reverse thrusters and get to 80 kts, I disengage the Autobrakes and apply slight pressure on the brakes and they're not responding at all? I guess we'll see if PMDG pick up on this little beaut. I admittedly haven't applied the update as yet as I've read some users have experienced adverse effects so I'm a little hesitant to install it (thinking that perhaps the update might address this issue)?! Rgds, XCL