I'm running Time Machine on Leopard 10.5.8, got plenty of working backups and the external hard drive is working just fine. After I accidentally pulled the power (read: didn't eject it before removing) it has stopped backing up. It "prepares" and starts but stands still at normally 0kb. This time 24kb, but yeah. I've used Disk Utility on the hard drive but no errors found. What can I do?