Anyway, i did some test to try to fix this problem or atleast to understand what is going wrong.
I changed the following setting:
I removed the WD screen saver.
I changed the HDMI resolution… before was 1080I and I changed to 720.
and since i did this changes the problem disappeared.
I add one more information about this problem:
" with previous firmware version this problem was not present"
I’m not sure, but i remember that with the previous firmware , when i turn on the WD TV live , the HDMI (always setted in auto) was set to 720.
So i’m confident thta the problem is , whit this version the HDMI it is instantiated in 1080I and it is going in crash in some case, or after some time of inactivity.
I hope it could be the problem…anyhow the time will tell me.