Very suddenly my dock has disappeared, (and occasionally reappears), and is now completely non-useable. Why..? I have created other accounts on my computer previously and the dock on those is fine... I have looked in Activity monitor and it flashes on and then disappears in there. I tried using terminal to 'killall Dock', but this did nothing... Am using Leopard on Alu iMac. Any ideas what's going on? - Please help!