Since setting the global option to keep system clock current, my 650 is updating itself at 3am. Unfortunately, there isa prob which is occurring that's killing the battery. The prob is the 650 locks up @3a. The screen is partially dimmed and remains frozen until I power up the display again in the morning. Naturally, becasue the screen is frozen at 3a and remains on, the battery is taking a BIG hit because the screeen doesn't totally dim. I have even turned off that feature and it continues to happen. Has anyone else seen this happen?!?