Well I have a new HP USB Wireless keyboard and mouse (uses same USB wireless receiver); mouse works fine on Dell Inspiron N7110 laptop, but keyboard won't. Tested keyboard & mouse on my PC; no problem. My wife's laptop, no problem. AND, here's the interesting part...we actually bought two of these HP wireless keyboard / mouse, and they both have the same problem, i.e., keyboards don't work on my Dell Inspiron laptop.