Hi guys. I have a quastioin about ram configurations and the more I look into it the more it seems to get trickier. I am beginning to understand that it isn't as easy as just buy and put in. I currently have 4GB - 4x1GB sticks. I would like to upgrade to 8GB Would my machine like it best with an additional: 2x2GB stick (total=4x1Gb,2x2GB) or 4x1GB (total=8x1GB) Once I reach 8GB I will be staying that way for a while I think 8GB is enough for what I use it for (pro tools) Any help would be great. Cheers.