Hi, I recently came back from holiday, and returned to my Macbook failing to boot. The Macbook was left on sleep while I was on holiday and obviously ran out of battery by the time I came back. I tried booting it when it was on charge and it got past the grey screen with the apple logo and the progress wheel, but just froze on a blue screen. I left it for about 5 minutes and decided it had crashed so held down the power button to turn it off and tried again - again, crashing on blue screen. The next time I tried, I just left it on blue screen for about half an hour, and by the time I came back, it had booted. It now takes about 10-15 minutes to get past the blue screen, but it always boots in the end. This happens not only when booting from Off, but waking from sleep too. MacBook is running Snow Leopard 10.6.8. It boots easily into Safe Mode but also takes a while to boot from optical disc. Any ideas?