But I'm having a problem with the keyboard controls. I just finished playing MM9 again, and decided to remap the keys right after I installed MM7, so I don't have to readjust.

I mapped "X" to "Quick Ref." and "Z" to "Jump". I also assigned "WASD" to the movements. There's no conflict in the mappings (no red characters on both pages).

After the remap however, things isn't working correctly. When I press "Z", the quick reference screen is shown. I closed it, then I saw my party jumped. Pressing "W" opens the spell book. That's not good.

I found the key mappings in my registry... they look fine, just as they do in the in-game keyboard control config. This is also not my keyboard going bad... it works fine outside of MM7.