Keychain admin

[R.L. Grigg]

My OSX user account was created with password XXXX. I changed it to  
YYYY in System Preferences. Now every 5? 10? minutes Safari keeps  
asking me again for my password from the keychain. Why it needs it  
I'll never know, but I have to give it my old password XXXX, not my  
current password YYYY. Someone told me to blow away my keychain but  
I'd like to know why it does this?

I'm running OSX 10.4.10. Intel.
Russ