UPSIDE DOWN
 

Everything used to work fine but lately the pictures show UPSIDE DOWN!!!

Not in every file. Yes in DivX files

Once it opens a file this way it always does it again, but I can still see them right with other players.

Why? What can I do?

Help please

a search wouldn't hurt on this one... so many people have asked about this

have a look here for instance:
http://forum.bsplayer.org/viewtopic.php?t=702

to sum up:
try changing one of your codecs/filters settings, one of them most probably has a flip option. If none of them has, install ffdshow, it will decode most of your movies and has a flip option.
codecs/filters properties are accessible via right-click on the movie window-->properties in bsplayer

I have tried looking for it but don't see that flip option.

I also unsinstalled and reinstalled xvid codec without any luck

So, where do I find ffdshow?

Yes I went through the search a bit too late

Thanks

ffdshow can be found on sourceforge:
http://sourceforge.net/projects/ffdshow/
select ffdshow-alpha.

oh, and it might be that a filter that flips your movies back in place is loaded by other players but not by bsplayer: there are a few filters that are loaded only if bsplayer is using overlay mode 2 instead of mode 1 (look in bsplayer preferences, video tab)