Yes, I had to change the login lookup to be exact (it used to not be case sensitive). There's some technical reasons behind this but unfortunately it's not something I'm likely to revert.

Thanks for the answer, maybe there could be a small note on the login page for the users writing their account name accurately ?

Yup, not a bad idea. I can get a note added.

Thank you for Samara for posting this. if not i will not know the login is case sensitive now. because i suddenly get logged out today and the username i have is not recognized anymore,

anyway it's a bad idea to use Case Sensitive Login Name since many problem occur like

1. Duplicated Account Name with different case
2. Someone trying impersonate another people using same name with different case
3. Login problem especially when there is not a single thing that say the Login name is Case Sensitive (Login page, New Account)

Hi TehBotolSosro,

Signing up for an account is different than logging in ;) Signing up for an account doesn't check case, we make sure your username is unique at that time.

Cheers for this, just happened to me too!

Same here , made myself new account