I just got my new Macbook Pro 15" (base Feb 2011 model) a few days ago and tonight I tried running GTA IV on it. On my HP Envy that had a 1GB graphics card, the game ran flawlessly. However, on this, I can't even get past the loading intro and the highest res I can get it 800x600. All of the setting are automatically at the lowest possible level. I know that Macs aren't made for gaming, but I was only using 300mb of VRAM on my Envy for GTA IV, so I figured 256mb would be enough. So anyway, what should I do? Is there anyway to overclock the 6490m? Would it be worth it to install Windows on Bootcamp and try installing the Windows version of GTA? Thanks.