Reply to few problems & questions :)

first because this is my first post on this community i would like to say thank you for all tutorials from djtt, advices, etc.
i have a two questions...
first.....i have a dell inspiron n5030 2GB RAM, 2,2 Ghz Intel Core 2 Duo T6600 processor running traktor pro.
i have a 2 sound cards m-audio torq conectiv and audio 2 dj
my m-audio conectiv after few hours working has a bad sound quality and i recently got a new audio 2 dj.
i don't have a bad sound quality problems with audio 2 dj but i have a lot of sound cracks.
i was using either m-audio or audio 2 dj with "Kontrol X1"

my second question....
i want to use a 4 decks internal mixing in traktor with the "kontrol x1" for effects, transporting and looping on the four decks and a "m-audio x-session pro or a Korg Nano Kontrol" for the faders...or
is that mapping possible ?