I had been using the remote OK when I tried to turn the volume up, nothing! despite the red light flashing on the TV set. I used the blue button to switch the TV off and the video came on, I found the remote was working the video, but there was no green light on the remote aside of the VCR on the remote, anyway I pressed the button that switches between TV, VCR and DVD and the light came on, on the TV but in this mode it would work nether TV or video, in the DVD mode nothing work still I went through them a few times with the same result. So I took the batteries out and put them back, and every thing was working as they should. As Sergeant Jones said dont panic.