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My Macbook pro is absolutely not as stable as my previous macbook white. I have the same problems as Todd Reynolds. It's rare but extremely frustrating issue and after troubleshooting it for a year I'm pretty sure it's a problem with the Turbo boost feature in the dual core i7 chips from last year's Macbook pro line. I can turn this feature off if I run Windows7 on the same macbook pro and I no longer have any issues. The turbo boost, and speed stepping reserve cpu for when you really need it but I think when those features kick in, it disturbs your audio stream. I have been calling/emailing apple constantly about my issues over the past year so we will see if anything is ever done about it. I have already tried everything thing else possible to get the Macbook pro not to glitch in OSX but nothing has worked..... even disabling one of the cpu's and hyperthreading! When the glitches happen the cpu usage can be as low as 14% . Only half of my ram being used. And again I can run the same software on the same hardware with a different operating system, without any problems. So to me the problem is Apple's OS. -Todd Matthews On May 18, 2011, at 5:36 AM, Per Boysen wrote: > On Wed, May 18, 2011 at 3:02 AM, Rick Walker <looppool@cruzio.com> wrote: >> I wonder if Macbook Pro owners have had any problems with brown >electricity. >> Anyone know? > > I've been using a Macbook for four years in many countries and never > had a glitch. I guess I must have come across "brown electricity" > somewhere, so I think this lappy is pretty hard to knock out. When I > have experienced a totally cut off of electricity (as during thunder > storms) it has switched over to battery power without cutting down on > duties. But PA speakers and other external gear shut down so the show > is off anyway ;-)) > > As for the MBP I've used one for onlya very short time and can't > tell, but I would be surprised if it wasn't as stable as the earlier > Macbook model. > > Regarding hum and noise in the audio output; I remember a thread on > the Ableton Live forum where a lot of people with Windows based > laptops found a solution in not using the house power but rather > running the show on the laptop batteries. People posted in and said > that this completely fixed the noise issue. > > Greetings from Sweden > > Per Boysen > www.boysen.se > www.perboysen.com > www.looproom.com internet music hub > -------------------- Todd Matthews toddbass.com twitter: gtodd876