Arc Keyboard batteries

Suddenly there was no response from my Microsoft Arc Keyboard. No warning at all. Pull out the USB radio and put it back - no good. Good thing I have this blog. I haven't changed the batteries since I got it in October last year. So I changed the batteries and now it is happy to be my "servant" again. This servant much easier to manage than the other one - always talking down to not just me but everyone. Yeah, still couldn't cast off this politics thingy.