I've had a few reports of people getting an 'access denied' error when they request a new password and then try to log in with it in Firefox.
The support forum suggests clearing your toymania.com cookies in Firefox and then trying again. I know that's a pain, but wanted to mention it in case it helps anyone. (Also, using a different browser seems to works, but that's even more of a pain if you have a preference for one browser over another.)