which firmware are you using?
what is your msd (size, type, brand)?
have you formatted the msd with the panasonic formatter?
have you tried taking the ak in/out to make sure it has a good connection?
have you tried taking the msd in/out to make sure it has a good connection?

finally... look at the pcb and tell us what color it is. it will either be green, black, or blue. you can see the color at the bottom where it sticks out past the shell.

-another world