does anybody notice the sleep mode on the three's and fours? on mine if it takes a picture the date and time will stay the same until a couple days later when another picture is taken then it will change to the correct date. in other words the date wont change every day. also i seem to be getting alot of whiteouts, does anybody have this problem? it doesn't seem to matter which direction its in. does height have anything to do with this? i know they say to point it north or south is there a better direction that you people have noticed? thanks for the info.