I just posted about my screen being black but I wanted to create a different thread since this is a different issue but I think they are related. I ran over the end of my charging cable with a roller computer chair. One of the little nodes on the charging cable that plugs into the tablet/keyboard was bent. I just bent it back in hopes of not having to get a new charger. It worked for a while. Then my keyboard battery stopped charging. Now the screen is black. I haven't purchased a new cord yet but am about to. When the tablet is plugged into the keyboard and the keyboard is plugged into the wall, the tablet charges. But the keyboard battery does not. Even with no battery power in the keyboard, the keyboard would still work when it is plugged into the tablet. Any ideas why this is happening?