I bought my keyboard in May 07. I am using Windows XP and I have not had any problems with it at all so far.I really love the zoom feature and if you are in the over 40 crowd you will too.Someone complained that there is no insert key. There is an insert key its above the home key. Granted is not part of the group of normal keys but I like it being out of the way so I don't hit it by accident.I will say that I wish the delete key was smaller as it is large enough I find myself hitting it on accident and that is why I am giving it 4 stars instead of 5.I have also read people complaining that the keyboard is cramped or small. I have not noticed that and I find it comfortable to type on.I'd buy it again for the zoom feature alone.