password glitch

hello
i am using Windows XP and Windows MS OUTLOOK 2000 ver
9.0.0.2711 . i am unable to get the system to remember my
email password. I can not figure out why it
requires a password everytime i press "send/receive email"

i already went through the fundamental steps to do make
certain of criteria in TOOLS, ACCOUNT...etc...
the password is kicked out every time after
i save changes .

would someone know if there is an academic method to
resolving this or is there a password GLITCH in MS O/L
2000 or is there a patch i can download