amiko mini combo hdmi problem

Hi All,
Just wondering if anyone has had problems with the above model amiko when using the hdmi socket. I am having difficulty when connecting to different display units with the hdmi socket. Some TV's will not display a picture when 1080 resolution is selected on the box, selecting 720 will work ok. If I connect the box to a hd projector I also have the same problem. I have tried 3 different amiko mini's straight out of the box. All seem to be the same.

Hi Codar,
Thanks for getting back to me. I went through all the normal checks first and tried the amiko on two different projectors also. One projector is 1080 and displays pictures from a Sky (UK) box fine. The other is full HD / 3D and is about 6 months old. This projector ( Infocus make ) does not like the amiko box at all. I have tried the amiko at both projectors with a 1mtr lead and still have the same problem.
Any suggestions most welcome.

Quote from codar

Think sly is 1080i not 1080p (don't quote me on that though)
Chance a different hdmi lead and try your refresh rate at 50hz (although it shouldn't really matter on a decent projector)
Maybe have your amiko running before powering on your projector (worth a shot)
Also check your aspect ratio on your projector (16:9 is standard for hd)

Hi Codar,
I tried when last on site a different hdmi lead, different resolutions etc, etc. It seems the latest projector which is HD / 3D does not like the Amiko where as if I try it on an older full HD model it displays pictures in 576 resolution. I will be back on site soon and will bring some different STB's with me to make some comparisons. I will keep you posted.
Talk later

UPdate,
Back on site today now that the Olympic games etc are over and pressure is off. Today I used an Amiko box which had original firmware ie, no emu addon, and it worked on both projectors.
It seems as though whatever changes the emu sw has made the projectors did not like it.
This is a weight off