My backslash / vertical bar key above the enter key stopped working after a popup appeared. However, I was typing so fast, I accidentally closed the popup and it wasn't until several minutes later when I needed the backslash key that I noticed it stopped working. I deleted the kb drivers which re-installed on bootup, the the key still does not work. Has anyone experienced this issue and how did they fix it? Please don't say reboot because I tried that several times after reinstalling teh kb drivers. Thx in advance!