Hi all, This is probably a whopper of an issue but I'm hoping that its a simple driver issue. Here it goes; I just built a new pc to replace my AMD 3200 2g ram XP machine. New machine is an AMD Phenom 2 , 4g ram, Vista machine. My audio interface is the Mackie firewire through a mackie 1640. I just downloaded the new mackie vista drivers, installed Ableton 7 and then loaded up some ableton files from a usb hard drive as a test. The file I loaded has about 14 tracks, and is using a good 8 instances of compression, and also a reverb and delay. This file ran just fine on the old machine and with low latency. Now enter the new machine and the audio exhibits crackles and minor pops, processor seems to be working hard even when not playing audio. To make the situation even stranger I seem to be getting a quiter pop or crackle through the Asio device when clicking on stuff in Internet explorer. I have been in an update frenzy but can't seem to solve the problem, any suggestions?