Hi, I've noticed that after my nMP in OS X goes to sleep due to inactivity, every now and then it won't send a video signal / wake up the monitor, once I wake the nMP itself. I know the machine is 'awake' as I've managed to open additional tabs in Safari for example, which I was able to view after switching the machine off and turning it back on again. This problem doesn't happen after I put it to sleep through the Apple menu and it never happens when running Windows. Anyone else experiencing this? Any solutions? Is this another symptom of Apple's poor video drivers?