I would have responded to your post Reboot... but it's locked or something... no "reply" button.
Anyways... was going to say that this used to happen to me ALL the time at my work computer... maybe a network issue on this end, but I haven't been logged out unexpectedly in a loong time.

"If it turns out that President Barack Obama can make a deal with the most intransigent, hard-line, unreasonable, totalitarian mullahs in the world but not with Republicans? Maybe he’s not the problem."