Hi, I have the same issue. It pops up every time I click on the remote control. I fix it for a moment by clicking media p. button and Enter. But it still popping up, when I use the remote control. I am interested how to fix it permanently? It started during cleaning the right bottom corner of the TV.
I got a Samsung (UN40C6400) 40" LED about month ago. Think my kids may have been playing with the remote (3 and 1 year old) because the past few days the info box has been popping up in the upper left hand corner and says [HDMI1/DMI No time information 1920x1080i] it blinks on and off every minute or two. VERY ANNOYING. How do I get rid of this?