Hi I'm trying to set up FF sync on a clean install on a new windows machine. When I try to login into FF sync I get: "Unknown account. Sign up" The thing is this is exactly the email account I'm signed in with on my other machines. I went to the trouble of resetting the password on one of them which forced type in the new passward on the other machines. This leads me to conclude that I am using the right email address and password. My only thought is that on the initial start up I progressed seomwhat down the sign up process (user id password) before realising it was sign UP not sign IN. Thoughts? Thanks in advance,