I've had the Casio CTK 481 midi Keyboard for a while now.I am using a Windows 8 Acer laptop where i make my music from using Reason 7 as the DAW. One night, Reason found my keyboard and I was playing notes. The next day when I started my session, the keyboard could not be found, which made me try and do different things to get it back working again. I even downloaded a midi program 'Loopbe1" to be able to assist on transferring the midi signal from the keyboard to the computer. Right now, I am stuck right now thinking if this model is too old for my laptop or I am doing something wrong. Can somebody help me out with this problem?