[7 Sorrows]

I have had a problem with my CAF account unregistering itself sometimes. it doesn't happen all the time, but it has been happening more frequently. i will finish my time on my computer and will turn it off and the next time i turn on the computer and i go to CAF it is asking for my username and password again. it is inconvenient and annoying. i keep the password handy so that i don't have to go through the trouble of asking for a new password. Why is this happening? i am not logging out. please help.