mail problems/password/keychain etc!


i've just bought a new imac g5 (osx 10.4.2) and am having problems with the mail application. all was well for the first month and then it continually asked me for my password in the keychain...i deleted and re entered it into the keychain application, which made things vaguely better, but now it just says it's gone offline...i'm running 2 pop mail accounts, the other is working fine.

also i am using broadband, so i don't see how it can be going off line...the email account that isn't working is virgin net...

any help will as always be greatly appreciated

thank you