I've been noticing something over the last few weeks. I usually move my mouse or tap the space bar to wake up the computer then type in my password. Once in awhile the dots will scroll across the screen after I type the first letter. It doesn't do this all the time. Just once in awhile. I've found that I can fix the problem for a little while by turing off the keyboard then reconnecting. At some point, maybe a day or a few days later, it will happen again. I'm going to guess I've had the keyboard for at least 18 months and I haven't spilled anything on it.