know you said new HDMI but like Maestro said try another Could be a bad one
But if it is still doing it I would save all you settings and servers and do a factory reset as it may have something corruped in it
OK
Changes
-info button now works on channel list, grid, EPG and single EPG
-Status Bar now clickable for FFWD?REW on VOD playback
-Fixed some MAC Server Bugs
OK this may not be even close But what I think happened is when you sat on the remote you hit a bunch of buttons and confused it or the stb and it just took abit for it to recover