Hi, I have an iBook G4 (1.33Ghz) with a gig of ram in it. Lightroom's specs say Mac OS X v.10.4 PowerPC® G4 or G5 1GHz processor or Intel® Core™ Duo processor 768MB of RAM (1GB recommended) 1GB of available hard-disk space 1,024x768 screen resolution All of which I have, yet I find lightroom's performance unacceptable, especially with so many people saying how it runs beautifully on their 800 mhz powerbooks. Maybe it's the fact that the ibook only has 32mb of Vram? Adobe didn't post graphics card requirements, and I figured it wouldn't be as tolling on the graphics card as aperture, as it doesn't rely on core image? Correct me if I'm wrong. Is there any way I could decrease the graphics usage? Any preferences in lightroom I could set to downplay the eyecandy a bit so it will run smoother? I'm editing 8mp jpegs, not raw files, so performance should not be so slow, no?