Since DP4 I've found that when I start my macbook from being completely powered off, I'm able to log in just fine... the desktop loads up but the system hangs. I'm able to move the mouse and click but there is a LONG delay before anything is useable. For example, I can click on safari and the app icon will bounce for a few minutes, it will open but then be subsequently unresponsive for ages. After around 10 minute the macbook becomes completely useable as usual. Anyone else seeing this issue?