I have used products from logitech in the past without any problems. Remote controls, gaming audio, all perfect examples of what works great and decided me to purchase a logitech wireless keyboard and mouse (K540). I am very disapointed about this product. In two years time it is already time to find a replacements. Letters on the keyboard are disapearring and one of the mouse buttons has given up. Time to search again for a new keyboard. Since I lost faith in the keyboard and mouse solutions of Logitech I will look for another brand.
