I have the exact same problem! And i've been submitting cases via the support all day, and nothing helps!
The thing is, I dont get what i have to do when i get the email:
A new case has been created
Case: 01344900
Avatar:
Type: Web Login Issues
Status: New
To comment on this case, either Reply to this email, or visit: https://secondlife.com/my/support/?caseID=01344900
(To view the Case online, you will need to log into Secondlife.com with this Avatar: )
It's a **bleep**ty problem and it is driving me grazy!