I've been getting a dialog box stating: "out of memory" when trying to render with Final Cut Pro 6. I recently added a second video card to run a third monitor and this is when it began. The second video card NVIDIA GeForce 7300 GT in slot four is not running at full speed, but the first newer card NVIDIA GeForce 8800 GT is. (Due to limitations in Expansion Slot utility I can only give the 7300 a 8X lane.) I have 9 Gb of memory in my 1st Gen MacPro 2 X 2.66 Ghz, running OS X.5.5. I have 0 Bytes of Page outs in Activity monitor and also when rendering I have about 6 Gb of free memory. In FCP under system settings I've tried maxing out and reducing the Memory & Cache Application usage slider to no avail. What gives? Thanks.