Well, I've been holding back on upgrading to Leopard due to my hate for it's interface... but after using it a bit, I'm feeling like I may be ready to move up. My question is, (and I know it's been a while for many of you) how was X-plane affected when you switched? Did the framerate drop or rise? Computer specs: 1st/2nd gen MacBook 2 Ghz Intel Core Duo processor 2 GB RAM Intel GMA 950, 64 MB VRAM Old and slow, but it works. I'm just worried that upgrading to Leopard may push my framerates from 25-30 to under 20. Early thanks to all...