ok, so i bought the adapter from compgeeks and here's my question. when i connect the adapter to my laptop HD, there are 4 pins not connected to the adapter. is this how it suppose it is??? i followed the picture shown at compgeeks website. also, to connect the adapter to my desktop, i need a 40 pins IDE cable but the cable i'm using right now, which came together with my mobo, has only 39 pins, one of the pin, the one somewhere in the middle, is factory sealed but this is alright since for that slot, my desktop HD has no pin for it. so how do i connect it to my desktop?? any guide around?? with pictures prefered....