Hey all, I couldn't find a thread specifically regarding this, sorry if there is already one, a link to it will suffice instead of wasting time answering.

Anyway, I set up a new Thunderbolt iMac with Windows 7 ONLY, and for some reason it is only recognizing one user account. There are 3 in total set up on the machine, and although I know the passwords for each it says the user name or password is incorrect.

I have tried resetting the passwords from the account that works, and it still does the same thing.

I set up exactly the same system on a seperate identical iMac, and it hasn't given me any trouble at all.

I'm really stumped and can't seem to find anything on google about this specific problem...