So I took a risk and bought a 960 for my mac. It's installed and running okayish using the web drivers. This thing is replacing my $2k (originally) Quadro FX5600. When I say okayish, this is what I mean: The HDMI port works fine always. If I use the DVI port, sometimes it won't boot, sometimes after it boots I can plug it in and it works, other times I plug it in and the computer crashes. Lately, it's been more of the latter. First off, does anyone know a way to troubleshoot and hopefully fix this issue? I also miss my boot screen. What I've been thinking about the last day or so is using two cards, the 960 and my old FX5600. This would give me my dual monitors back reliably, but would also let me see the boot screen. The 960 takes a single 6 pin power cable while the 5600 requires two of them. Is there a way I can split off one of the power cables and send the split power to the 5600? Can the PSU handle this?