Hi. I've been forced to switch to the white keyboard that came with my Mac last week because the shift key on my 100 year old Microsoft split keyboard elite died. When I stated using the keyboard, it felt pretty good. Really soft keys, kind of weird not being split but that's just a personal thing. Anyway, I've stick with it but I'm having a problem with some keys sticking. If I hit the space bar in just the right way (which happens to be the place my thumb lands everytime), I have to press harder to make it go down. Same thing with the arrow keys, command and control. I've noticed if I pop them out then pop them back in it fixes it for a few hours, but then it comes back. I feel like I have to type really heavy and hit the keys really hard -- harder than any other keyboard. What gives?