I haven't been able to answer because I just got back from Shanghai, where this error was truly obtrusive. I only noticed the error after I installed the Market version of Pleco, but that doesn't mean it wasn't happening before that. So of course, all settings and downloads have recently been redone. I'm experiencing the same error on my Galaxy Note and Galaxy 7.7. I never input Chinese characters, only pinyin, and I just now notice that I can't find a way to enter Chinese characters. I've done it in the past once or twice, but I apparently don't remember how to get to the Chinese characters input interface.