I've read both of those and I tried it without changing the password then I tried it after changing the password with the new password a few moments later. I tried my google talk client on my PC with the new password and it worked. Any and all possibilities I have explored. It has to be on there end or googles end.
username / password
username@gmail / password
username / new password
/ new password
friends username / password ( worked )
new gmail account / password ( worked )
changed my password to the same as my friends password and didnt work.
Believe me I have tried anything and everything...
I work in IT so I am far from computer illiterate...