Well, I am not sure if this is a prevalent issue among Lion users. But I have two Yahoo email accounts set up for Mail app in Lion. It seems like they always act up with keychain password problem. I can type in the password and click the "remember password in keychain" option, but it will ask me again and again. I verified the permission on disk, it shows no issue. This seems to only happen with Yahoo account, my Gmail account never, or rarely, has this issue. Any idea how I can fix this annoyance?