I finally fixed my problem and got it to work on wireless N . I bought a newer router and now my wifi does not drop, slow down, or stutter. The card works much better with this new router than my older one.
I still find this card disappointing, as it should be backwards compatible with older N routers. If you cannot buy a new router than I recommend setting your card to wireless G until you get a newer router. Of course any wireless N router will be backwards compatible with G, even on your more "advanced" wireless adapter. My older laptops with N worked fine with my old router too. Well, I'm done complaining, good luck to the rest of you. 