No underscore

[Jupiter7]

I have solved the problem. I pretended to log in to another site, and it worked quite well.
The problem was I had downloaded Last Pass (which I have on desktop) and the particular Last Pass page I was trying to log into, would not accept the _ & @ - I got out of Last Pass altogether, rebooted, and found the application again - this time I opened it up to log in (different page) and it worked fine.

Sorry to cause you all problems, but thanks for helping anyway.

No problem! Glad you have solved the mystery.