I cant seem to access my second hdd on my windows 7 desktop for some reason, i am able to access files in my c: but not my d: how do i do this on the actual boxee box?

this seems like such a easy thing thats seems so difficult damn even my apple tv can access all folders on my computer, reason i wanna access the d drive is cause thats were all my brrips and tvshows are located and cant transfer then due to space

hope someone can help me out