Originally Posted by Shaggy
There was a known bug that certain conditions or certain types of document formats would cause an issue that prevented the device from going into suspend/sleep (whatever you want to call it) mode correctly and could lead to excessive battery drain. I believe some of it was fixed in later versions, but I don't think it was ever 100% resolved.
Interestingly, I noticed the other day that if I accidentally flip the flip-bar when it is in sleep mode, the page has changed when I turn it back on. Anyone else experienced this?