I have a Slingbox 500 and for years everything worked smoothly. For months now every time a channel appears, so doe this message, which covers about 75% of the screen and lasts for about 15 seconds before disappearing:
Your TV or its cables are not HD
On the remote control, press and hold down the exit key until you see a confirmation that your receiver has been set for standard definition.
1. I have HD cables
2.Pressing and holding does nothing
How can I get rid of that screen-blocking message?