I don't remember this happening in W7 or W8, but since I updated to 8.1 preview, now 8.1 rtm, when I type a long story or something (i am a keyboard watcher) ill look up when almost done typing and notice everything disappeared! so I dunno, is there a certain keystroke option or something I am activating to clear everything that didn't used to exist? I am at a loss, happens in multiple programs so not isolated to certain software. Keyboards fine, having spilled anything on it. Any help would be greatly appreciated, driving me nuts.