The only time I had a client complain about both her LG bluray players (difference model than yours) locking up I did not believe her. I went out to the house and started farting around trying to get them to lock up. I made a startling discovery. If you had a disc in the tray, and were watching netflix, and pressed the "top menu" button, the machines got confused....like why on earth would you want to see the title menu of the DVD while you are watching "Pingu" on netflix? The whole thing would lock up and not do anything until I pulled the power cord and rebooted it. Way to go QC and beta testers! Oh wait....that is us! Thanks to me I guess. :)