I have a 2006 MBP 2.2Ghz with 128mb Nvidia 8600M graphics card. I installed a trial version of Photoshop CS4 back in November, and was able to use the OpenGL effects of zooming in and drift-moving the canvas around. However, having installed the full version earlier last month, I've noticed none of these features are enabled, and in Photoshop's preferences it claims I need a new video card or driver. My drivers should be up-to-date, as I've installed all Apple's firmware and software upgrades via autoupdate. Anyone with a similar machine experiencing these problems?