No ihavent called them yet..although Ive been reading on the net that they have been unofficially repairing 360's that were made in 05 even if they were out of warranty.
Yeah what exactly are you doing to yours? I read a little about it..and it seems fucking complicated.
Does yours sound like there something small...possibly metallic loose in it before you took it apart?
Update!! I've fixed my xbox360! For how long, who knows.. but so far an hour of pgr3 and no problems.
To answer your question Fuzz, yes it did sound like something is loose inside before i took it apart. and during and after. i think there is some kind of sensor that senses which position you currently have the xbox in..?
there were no loose components inside.
the fix was relatively easy if you have any electronics / background skills.
the hardest part is taking it apart and putting it back together.
you need a heat gun with multiple settings (400 F - 1050 F), rubbing alcohol, silver heat sink compound and some patience.
If I had all the parts available when I started the project it would have taken me approx 1 hour to fix.