Return from idle state too aggressive

[orev]

My (Windows 7, 64-bit) system locks when I'm away. When I return, I unlock and it can take a few seconds, sometimes 10s of seconds, to actually return to the desktop screen. During this time, FeedNotifier is dutifully displaying alerts, though I have no ability to see them.

There should be a delay (possibly configurable) for how long to wait before displaying alerts after returning from idle. I'm sure this will also be useful for others not in my situation, as people might not want to get hit with alerts immediately sitting down back at the computer.