Has anyone experienced this or can confirm this problem: On my Mac Pro 2.66 with single Superdrive (Optiarc AD-7170A), I can boot from the original Tiger OX Install disk one, no porblem. But I cannot seem to sucessfully run Disk Utility from the DVD. When I Launch Disk Utility from the DVD, the application opens and I get an eternal beachball. The DVD drive whirs up a short bit, then goes quiet. The only way out is to powerdown with the front power button. I don't imagine you can force quit. I only have one hard drive -- the stock 250GB WD2500AAJS On the other hand, Disk Utility launches fine from the hard drive itself -- although "Verify Disk" does take about a minute to process when inspecting my hard drive. Could it be it's just taking a REALLY long time when running from the startup DVD? Please note what DVD drive you have if things work fine for you thanks!