hello..something happened to my rk 9000 blue ... while i was using it just now, some keys like "G,H,apostrohpe,F4" suddenly stop working.. and my com went to sleep modewhen i unplugged it...i tried re-plugging it and the blue lights flash and then nothing happened..
I have been using RK9000 for a while. Except for a small QC issue I was encountered, I am very happy with it. Specifically for its humble looking, give me so much fun for typing in office without get everyone's attention. I cannot say it is cheap as for a keyboard. However, it is definitely worthy for the money. Good product.