i found a fix for this a while back. when you take a pic, it goes into the Camera folder in the Gallery app. go into the Camera folder, leave it there, then hit the home button to go back out to the home screen. then go into the Gallery app again and the newly taken pics should load. i'm assuming you can use this same method for the other folders as well. this is most likely a bug in the new 2.1 gallery that they need to look into.