<A HREF="http://news.zdnet.com/2100-9595_22-5723559.html?tag=zdnn.alert">The main problem with laptops</A> is that the screen and keyboard are so close together. Without the aid of peripherals, laptop users have two choices, neither of which would win them any points for posture. They can cramp their neck down to view the monitor or they can elevate the machine to eye level, which can wreak havoc on shoulders and arms. And the wrists lose regardless, because the keyboard is so small, leading to awkward hand positioning. Laptops can cause other physical woes. People have been burned by the heat the machines generate. The temperature issue can also cause fertility problems in men who place the machines on their laps for prolonged periods. Frequent travelers can put strain on backs, hands and shoulders by lugging a laptop around.