I was recently poking about in the Group Policy Editor seeing if there were any changes between Vista and 7, but after I had exited and locked my computer I noticed my lock screen now shows as this: http://img121.imageshack.us/img121/2/20092009100o.jpg
(I had to use my phone as it seems you cannot use print screen at this login)
Normally it would have the persons picture and name, and all you would have to do is enter the password, but it seems it has made it so you have to enter the Username and Password which is quite an annoyance. I went through all of the settings to make sure that I had not accidentally changed any, from what I saw I had not changed any settings or if there were in fact any settings that causes this behaviour.
Thanks for your help in advance,