Assuming you have a password that includes the @ sign – how do you enter that in the Windows 7 logon screen?
The workaround I have found so far is to use ALT+6+4 (on the number pad). This works, but is cumbersome.
I am guessing that this is a non-issue on a US keyboard? Does it work?
On the keyboard I am using (Swiss German) you need to press ALTGR+2 to get the @ symbol and the logon screen does not recognize this combination – it doesn't add a character bullet to the text box.
Update: This morning I tried to login and everything just worked. Bummer. That was the lock screen, though. So next, I logged out and there: I can't do any ALTGR combinations (so that rules out the German-German hypothesis) – but SHIFT+2 does work. Hm…