Hi, I've just installed Lepord on my June brought MB, 2GB RAM. So the specs of the machine should be fine right? Now the main problems I have encountered are with apps speeds. Two main ones being Sketchup & Quicksilver. Sketchup is SLOW! I don't know if anyone else use's it but it's taking ages just to copy and move an item. And the 3D graphics and rendering is jerky. Quicksilver just isn't working. Simple as that. I've also noticed that Stacks is slightly different to what old 'Jobs' explained it as. Is there a stacks menu somewhere? I can't customize them at all. For example changing between grid and fan. I wonder if anyone else is noticing this. Thanks people! Thom PS. PDF's in quicklook are SLOW to!