I was wondering if anyone has had any sluggishness working with Aperture on the 2.66ghz i7 MBP (2010 model). My Mac Pro is not working atm so I have been using my MBP a lot lately to work on my photos. I've noticed some extreme sluggishness especially when using quick brushes - while brushing/painting in an adjustment it can take up to 2-3 seconds to appear on the photo, and my mouse cursor gets extremely jumpy. If I enable the Color Overlay option, it's even worse, and usually takes about 10 seconds to display the overlay! I am working on 15mp RAW photos mostly. My MBP has 8gb RAM and a SSD (though the aperture library resides on an HDD mounted in the optical bay). The Aperture library I'm working with is fairly small - about 8gb, managed files. Just wondering if this sounds normal or if something is messed up with my MBP...Thanks!