to-day for the first time I am getting the following error message on my p.c. screen. "The output is blocked". There is audio and this does NOT occur on all channels. It occurs if I try to go into the PVR guide and it also appears on a number of 500 series channels. If I log out of the slingbox and back in the out put error seems to disappear.
I have removed the HDMI connection but that does not seem to alter the problem. Suggestions please. Thanking you in advance.