This is helpful, thank you!
But, this doesn't line up with my experience:
"Do I have to leave the client open in order to mine coins?
No. You have to leave your account "unlocked" in order for your address to be active, but you do not have to leave your browser window open."
When I close my browser window my account locks. When my browser window is open and active my account locks after a peeriod of time (maybe an hour). I've looked for settings to tweak and find none. Any suggestions?