Hey Nybbler,

thanks a lot for your efforts, i really appreciate that very much!!!

Sadly lowering the intensity does not work either...

Maybe burnside will find a solution, i cannot be the only one who has got Problems with this, i mean i've got this prob two different machines, different GPU and CPU generations, different OS (Vista Business x64 and Win8 Pro x64), even in different rooms, the only thing in common is x64...

Its really sad, cause if burnsides pool works, it seems to produce a lot more profit than other pools, especially now that i plugged in another 5850 and with 2x5770 and a 6850 waiting to be installed... 

Thanks again, bye and good night (6am here  )