I've paid the nominal fee for pro and have had trouble downloading ever since. e.g., downloading several files, the first few will be recognized by quicktime mp3 or iTunes....... then, suddenly, they are idendentified as Real Player mp3 and nothing recognizes them.

AVI (starwars trailer) is also unopenable.

I would like to
A) set itunes as my defaut player
B) open all these files that I keep downloading