I have a TOSHIBA Satellite L305D S5895, connected to a Linksys Wireless N router. I bought a Linksys Wireless N Notebook Adapter, model WPC300. It does not fit in the slot on the side of my laptop. The width of the card is OK but I can see inside the slot that the laptop has a shorter row of contacts than the card. Also, there is a black plastic block on the right side toward the back of the slot, which prevents the card for going all the way in. Please advise--thanks.