i hope this helps somebody before go out & buy new tuners. i did as brummie & ferret advice old & new image but no luck after three days i almost given up
one last thing i have'nt tried,took the tuners out of the box flash it with bl72 dated 09.06.2010 ,,dreamelitebh 1.3.3 oe1.6 dm800 sim1 [post 73 in bl72s}
then i flashed bl 70 . i put back tuner booted box my problem sorted twice two boxs back to life i then flashed four or five images after that no problems at all
as personal choice i went back to the first one .. i hope this helps some peeps
busman thanks guys