harrywye

Yes, I'm aware that. That's why I tried to think of scenarios where I was possibly using my other browsers/devices with the same gmail account. But, this is different. I just saw the same thing happening again with another gdocs document. The message comes up "hxxxxx has opened the document" and then some seconds later, "hxxxxx has left", while I wasn't doing anything. (If it wasn't due to some kind of anomoly in google docs, e.g., possibly as suggested spaghetti, then the only explanation seems somebody cracked my password, unfortunately.)

Thanks for your suggestion. It's like you think about getting a fire insurance after your house is burnt down. But, definitely, I'm starting to realize I have to pay more attention to security. This has been a surreal experience for me to say the least...

Could be. On your first note, I highly doubt that though. I worked at big companies who provided "cloud" services and I NEVER accessed customers' accounts. Your second explanation seems more plausible. I presume that's possible... Unlikely, but possible.

The UI is not very intuitive, but there are a lot of hidden/useful features once you start using it. Please check it out, and let me know what you think!