Vista - Vista boots as if I attempted to login with an incorrect password

I use the standard admin account but changed the name. I added a login password and now each time I boot to the screen one would receive if they had tried to login in with an incorrect password. This is before I have attempted to login.

Try to create another administrator account and let know us about results.

I use the standard Admin account as my own. Renamed it and added a password. I think I may have just figured it out although for the life of me I can't remember where I was. Essentially there was a checkbox having something to do with user control and having to enter password. The meaning to me seemed that it may have been trying to auto log me in without a password because it wasn't told to ask for one. In doing so it was getting it wrong (because I had a password set up) and so the error. On checking this box all was corrected.

Do you use built-in Administrator account?-You shouldn't do that.Use System Restore to back to any previous point and then disable builtin Administrator account and work on yourself account.

I do use the built in admin account. I had changed the name to my name and added a password. I have done alot since the beginning. Moved Docs, Music, Video etc to D drive, added Internet Security etc. I do not want to have to redo all of that. Shounds like you are saying that I should set myself up as a standard user. Is that the case - even if I am the only user of this pc? Is so - how can I do that and still own all of the work that has been done and not make any major changes? Thank you.

Yes you have to create standart administrative account.You can move almost all settings.When you create new account copy all folders (but not junctions NTFS junction point - Wikipedia, the free encyclopedia ) from C:\User\<builtin admin> to C:\User\<your new admin> and replace exist folders.In this way you save your data and applications settings

PS.
Remember you can't replace NTUSER.DAT,NTUSER.* and junctions -otherthise you may have trouble...

Why not use built in admin account? I have read conflicting opinions on this. Some say that as long as I assign a password to built in admin and I am the only user of the pc that there is no reason to operate under another user account.

You will do what you want but I suggest to read below thread (and all discussions also!)
Administrator Account

At intallation I am asked for my name and then it turns me into an administrator. I then changed myself to a standard account and left the admin account on it's own. Working out well so far.
Curious about one thing though - When I named my pc at this point it allowed no special characters nor did it allow me to name the pc the same as I named a user. But later I was able to change the pc name to the same as a user without issue. Why is that?