Garageband pops and cracks during playback after 6.0.5 update
After updating my GarageBand to 6.0.5 and OS X to 10.8.5 this morning I am experiencing random cracks and pops when playing back audio tracks in GarageBand.
Example
As an example I have used Magic GarageBand to create a project with a single audio track and playing this over the internal speakers of my iMac produces the random cracking and popping. It is not an audio interface issue (running through audio interface does the same as the internal speakers). Doing the same on my MacBook Pro running GarageBand 6.0.2 and OS X 10.7.5 does not give the issue. Before the update the iMac played the same projects without the noises.
My iMac is brand new (delivered two days ago) and I added a Focusrite Scarlett 2i2 audio interface today, however this is now unplugged in order to try and isolate the problem.
Is anyone else experiencing this issues? Is there a way to roll back to the previous version of GarageBand?
GarageBand (Mac) '11, OS X Mountain Lion (10.8.5)