Suddenly i have a keyboard problem with my Tecra Z50-A under Windows 10 64 bit. When i am browsing and hit F12 there wil be a screen visible with technical content of that site (element-screen?). But now i also get that screen when i hit the "o" (not the zero) key. Is this a knwon problem and is there a remedy. I already tried System-repair and Windows-repair. There are more strange behaviours of the keyboard, but this one is easy to explain. Does anybody know how to fix this, or am i making some strange typing mistake.