Microsoft K5100141 Keyboard "problems baby toys" Questions

comfort curve keyboard 2000v1.0, key A does not respond german comfort curve keyboard 2000 connected to Dell Dimension E520, key A does not respond.Suddenly stopped working. Mechanically ok. Can ...

...problems with this MS comfort curve keyboard starts when at random some of the keys stop working, it dose not matter how hard you press or for how long, they just wont work, this problem is due to ...

...problems with these MS comfort curve keyboard starts when at random some of the keys stop working, it dose not matter how hard you press or for how long, they just wont work, this problem is due to ...

...problems with this MS comfort curve keyboard starts when at random some of the keys stop working, it dose not matter how hard you press or for how long, they just wont work, this problem is due to ...

...problems,...even after running their products well, then suddenly....stops working for no apparent reason.....same with Motorola cell phones,.....my last expensive Logitech USB headset and mic is now ...