I can˙t believe that this cannot be fixed because there are a lot of MP6.1s which work 100% stable.
I don't know, sometimes I have the impression, that there are only a few or hundred people out there with problems.
Some of them with self made problems.
In case there is really a serious widespread problem (nobody can confirm that today)...
I too can't believe that the problem cannot be fixed.
But..., I hope for not to say I doubt, a service provider can find the problem, depending on repeatability of the failure.
Their monitor-setup is different to yours, this makes it not easier.
The test-software may not find any problem, so maybe they start to change hardware parts. Try and error.
Finally, hopefully not, you are the tester to say, if the problem is fixed or continues.
Such a thing should be a case for Apples hardware developement departement. Only these people
have microcomputer-knowledge and test equipment for a research. Maybe Apple will not like a research,
as this could bump a repair extension programme for hundrets or thausends of machines.
In a worst case a developement of (for example) a new circuit board if it is a construction failure.
As I said earlier, a class action could solve such a problem, but how many people are really affected to do so.
Some month ago I opened a thread in a german Mac forum to ask people about known problems:
Not one answer.
Anyway, I hope and wish for everyone,that this bug is more simple. Maybe a change of a part will really fix it at all.
Keep us up to date.
Q:
Do you have problems with Mavericks as well?
Is there a possibility, that a home setup, power-line, interferences etc could be a reason?