<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hold down option when booting (I hold it down before pressing the power button) and you should be able to get the boot disk chooser screen.<div><br></div><div>You could also try zapping the PRAM, resetting CUDA, etc.</div><div><br></div><div>Dave</div><div><br><div><div>On 25-Jun-09, at 00:25, Neil wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Arial Rounded MT Bold'; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="border-collapse: collapse; font-family: 'Lucida Grande'; font-size: 13px; white-space: pre-wrap; ">I had a hard freeze on Sunday on my G5/2x2 PowerMac running 10.5.6. I could move the mouse, but nothing else on the system responded. The dock wouldn't even unhide. I couldn't force quit anything. So, I shut down the system using the button on the Mac. When I tried to start the Mac, I got to the login screen, but it had a pinstripe and then froze on the screen with the Apple, but no login screen. I tried booting with the shift key. Same. Then, I tried booting from the internal back-up drive and a got a pinstriped screen with a question marked folder, then the same freeze. The same happened when I attached a firewire boot drive and tried to boot holding cmd-opt-shift-del. Same result. Any ideas? Thanks.</span></span></blockquote></div><br></div></body></html>