My unit fails to download any file past the 265 via USB download, but is successful via null modem cable, but in both methods will lock up my unit when it tries to reboot itself. Cables connected, or cables disconnected, makes no difference. The only way I am successfully able to access the menu after lock up is to redownload the Factory bin via cable. My receiver downloads ALL files 265 and previous, both USB and cable, and will rescan/download satellite/channel information like it was brand new...it just refuses to reboot with the 269's, 270, and 272 under any circumstance. I have been doing this for quite some time and I believe I have tried everything. Anyone have any ideas why the automatic rebooting fails? i'd sure appreciate any help. Thanks.