Please read especially items
(3) and
(4) of my
Help2Help-post (also with respect to the use of GSpot).
P.S. Make sure to note the part under item
(4) First-time user? DivX-codec and AC3-Filter.
(GSpot shows you're missing video codec so you should install DivX and/or XviD codec (or a filter)
links where to find those are provided in item (4)).