Hello there, I upgraded to Lion the first day it came out, upgrading the "proper" (I use that term loosely) way, and it's very sluggish... I back up everything using Time Machine onto an external hard drive every day, so I'm not going to lose anything. If I wanted to do a clean instal, what would I have to do? Would I insert my Leopard disc (that's what was on my machine when I bought it), then upgrade using my Snow Leopard disk, then download and instal Lion, then put my documents and apps back on (manually)? I'm new to this, so don't flame me... Thanks!