[Camino] username/password issue

I have two sites I frequent that used to fill in my username and  
password automatically from the keychain and suddenly today they  
don't. I don't know what I may have done. One site is a webmail site  
for an email account I have with a college. The other site is my  
account at my credit union where I look at my checking and savings  
accounts online. Now, when I go to these sites, I manually fill in the  
username and password, I'm asked if I want Camino to save them, I say  
yes, save it, but when I go back they aren't filled in. Can anyone  
offer help here? Thank you.