Running Win7 Professional (x64) on a Dell XPS 1730. I have set the 'Action on closing lid' - as Hibernate (both on and off AC power.) I've been having intermittent luck with it, sometimes it does, sometimes it doesn't. I have also noticed that when it fails to Hibernate, when I go to use the machine again, the screen brightens and the mouse works, but I can't actually do anything for a couple of minutes, other than move the mouse around (can't click on anything, windows key does nothing, not even ctrl-alt-del. When it properly 'wakes up' it then actions all the key-presses I have tried 
I'm pretty sure both issues are related, any can probably be pinned to something I'm running - anyone know if there is some way to log what is stalling the system to track down the culprit?

I'm pretty sure both issues are related, any can probably be pinned to something I'm running - anyone know if there is some way to log what is stalling the system to track down the culprit?