can't advance certain movies

[L]

I'm unable to watch certain movies in wmp and advance
them. I try and pull the seek button forward but it will
just drop the button back from where dragged it from.
I've also tried installing different codecs but that
doesn't work either. Any ideas?

 

[Chris Lanier [MVP]]

Hi those files need to be indexed.
http://www.nwlink.com/~zachd/pss/pss.html#seek