My 612 and 622 have been very sluggish responding to the remote since yesterday. I had to reboot (press and hold the power in) on the 612 last nite twice to get it to respond to the remote. My 612 is VERY slow to react. Pressing select did not get it out of standby, the power button on the remote did and then it did not respond to anything on the remote for a minute or two. Anyone else?