I'm (desperately) trying to hold on to my Mac Pro 1.1 until the (hopefully) new 2013 comes out. It's a 2X2.66 dual core model. I'm running 7 GB of RAM and running off a 120 GB SSD drive, so the performance is good enough for what I'm doing (print design work). The last couple of days, I've been getting these weird random freezes where I get a spinning beach ball and there are little geometric patterns of reddish thin lines all over the screen. I can't recover from that, I have to restart. I zapped the PRAM and repaired permissions on the boot drive, and there are no memory errors showing under the "about this Mac" information when it's been up and running a while. But at random moments, it will just freeze. I'm also noticing some weirdness with the screen display, where the dock will look odd or the desktop will not completely redraw itself when a window is closed. Bad video RAM? Something else? Any ideas? I have a big project about to start and can't work like this.