crash just to press a channel (maybe i have solved)

hi, the fast crash i think was because progdvb don't support 8 tuners.
till today i have work with 5 of 8 tuners and all was ok.
when i have try to turn on the 3 remaining tuners, the program
had crash just to touch 1 channel.

right now i have open 3 tuners, search channels
and all is fine.

now i go for sure to turn on till 5 tuners, and must be ok,
but if i try to open the 6th tuner, all crash.

i wrote when i'm at 5 tuners opened.