Bad Picture some times

[nightshadow36]

Hi.

This is very hard to explain but i will try my best.

I have 4 x TBS6985 tuners and I am using it with MuMudvb and a multi switch.
My computer is set up to start all the channels when it is restarted.

There seems to be some problems. I start all the channels and go through them to make sure they are working.

But some times all the channels on one transponder has a bad picture - dont know how to explain, kind of blocky messed up.
The only option is to restart the channels it may take two or 3 restarts then the picture is perfect.

This can happen on the same transponder or any other, it can happen on any card also not always the same one.
The only option as i say is to keep restarting the transponder, card untill it works.

This would not be a problem but i am using the cards for IPTV and I can not always be there to make sure the channels have started as they should.
Is there any thing that can be done - Is this a problem related to the TBS6985 - This happens on Debian, Ubuntu and also on different motherboards.
I have always updated the drivers when there was a new release but it has always been the same.