I was sending a message through the reps and everything suddenly quit. I could click, but not type. A little emblem showed up on the lower right side of the screen for filter keys. I couldn't figure how to get it to shut off, got offline and finally just shut down and restarted. That worked. Is it something that's still having a problem in your system here, or did I accidentally push something on my end that turned this feature on? What exactly are filter keys?