i,uploaded,a,1920,1080,taken,nikon,7000,on,premiere,elements,10.,when,i,choose,PAL,1920,x, 1080,DSL,from,preferences,the,preview,window,is,just,a,grey,rectangle.,However,if,i,choose ,DVD,preference,it,plays,in,preview,window.,,why,does,it,not,play,with,the,

i,uploaded,a,1920,1080,taken,nikon,7000,on,premiere,elements,10.,when,i,choose,PAL,1920,x, 1080,DSL,from,preferences,the,preview,window,is,just,a,grey,rectangle.,However,if,i,choose ,DVD,preference,it,plays,in,preview,window.,,why,does,it,not,play,with,the,more,appropriat e,settings?