I had the same problem before, cleaned my computer down for other reasons, recently installed again LW, and Yep same prob...
I believe that i've done all you have pre-mentioned here, I have a default player but I have not made any specific changes to it. is that what i am doing wrong, or should it work automatically when i choose within LW the systems default player?
What i would like to do really is make AVI Player default to LW, and keep 'media player' default for other applications
Is this possible???
Thanks
legepe