This one is a weird one: have a customer using the same gmail account for quite a while.
Used it mainly with Mac mail and on his Blackberry.
All of a sudden, he cannot access his Gmail on either BB nor Mac mail. He is able to access the actual account using Gmail.com.
I changed the password, same result.
The error is basically telling the user that the password is wrong...reset password 3 times to same results.
I've tried my own gmail account, no problems in either Mac mail or BB... I triple-checked the setting on his gmail account... still puzzled...