I can not set the current time on my clock (Model 13040CA ). When I press and hold the set button nothing happens. I can not get into set mode. This happened when I plugged my tablet in the USB port. As soon as I plugged it in everything on the clock reset. I have charged my tablet before without a problem. There is no reset button on the unit. Also, prior postings in this forum related to Model 13040 seem to mention a similar problem but no satisfactory solution is ever presented.