Hello, I have a key board problem that is not the keyboard because I tried a new keyboard and had the same problem. I have a Sony Vaio computer with Windows Vista. When I type if I use the same key twice in a row (any letter, number, space, backspace, etc.) I have to wait 2 seconds before I can type the letter again. Also when I use backspace I have to push it, let go and wait 2 seconds then push it again to delete the next letter.
I hope you can figure it out.