Okay, I just received a new kit of RAM today: 2x2GB to replace my 2x1GB. Alas, one of the new RAM modules is broken, so I have to send it back. Before I do so, I'm wondering about setting up the working stick next to the two existing sticks. So I'd have a 2GB stick in one slot and 2 1GB sticks in two others. I know I couldn't possibly hope to get dual channel goodness out of it, but I'd have 4GB capacity instead of 2. Would that give greater performance than 2GB in dual channel?