Have you been told to pick the box up and try it in another room away from any interference that you might be getting in its current location whether IR or electrical. My long standing problem was sorted when I moved the box 1/2" back from the Technomate TM-7102 it sat on. Both merrily interfered with each other at the end which is when I slapped a piece of paper to filter out and IR passing between the two. Moving the HDR back that 1/2" then led to both behaving correctly. Visits to the local Technomate distributor showed that it had no problem but it did at home which is when I decided that the two were interacting. I had thought it was the plasm screen, the low energy bulb etc.
Hadn't thought of that myself. Worth trying if I can't solve the problem any other way, but I've made no changes in my hardware arrangement since July, and this problem only began for me on Sunday afternoon, so I'd be surprised.
Log of today's experiements:
Box 1: Flushed, and physical remote become far more responsive but still prone to multiple problems. Did not test IR.
Box 2: Ditto. Physical remote also far more responsive, but still not as good as it should be. IR not working.
Now reinstalling official firmware 1.03.12...
Box 1: Remains in the improved state, but remote still not acting properly.
Box 2: Not attempting.
Firmware 1.02.32...
Box 1: Ditto. Still no further progress.
Box 2: Not attempting.
Despair grows. Going to attempt moving around other hardware then.
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No luck with moving devices around. Not a clue what to think now. I'm still minded to rule out a hardware problem as it just seems too coincidental that both of my boxes have started behaving in exactly the same way, within just a few days of one another. Indeed, Box 2 is a newly refurbished model bought direct from Humax only about 3 weeks ago, so it doesn't seem likely it would fail in exactly the same way at exactly the same time, as the 2-year old Box 1.
Any advice, thoughts or suggestions very gratefully received.