Hello, I recently bought a Macbook Pro, 2.4G, 200GB HDD, 256MB graphic card, 2GB RAM. I used it mainly to do Image Processing programs with MatLab, which are pretty heavy. Sometimes MatLab says it has run out of memory and my only option is to quit the program and restart it again. (Clear all doesn't work!) I don't know if that means it uses all the RAM, but the other day I was using Time Machine+MatLab+surfing and on iStat Pro it said I only had 100MB of free RAM and the programs were going really slow. Should I update to 4gb? I've seen memory in Newegg for 78$ (Kingston) that everybody says works very nice. Apart from that, what's that thing abut OpenGL with MatLab?? Is it related to the memory you use (Ram or graphics card??) Thank you!