SD Memory Not shown at explorer

sandi
Hello Could someone help me please ;) .

I decided to use sd memory card with 2GB and 4GB memory capacity, and when
i plug into sd socket nothing happen, i mean not being detected and assign
as external drive at explorer form.  ( i also check that with my SD Reader
and plug to my pc desktop that Card work perfectly - just to make sure if
card is just fine).

i also try with run time image wince 5.0  and wince 6.0 that included in cd
bundled with mini 2440, sd memory not being detected and shown at explorer
form.

could anyone give me advice for solve that problem. 


Thank you