ah, so it'll always be a problem, i guess
mindwaves, i DID re-install and it did let me view the video, but it still gave me a (different) "you don't have/or we can't tell which version/proper version of WMV player" error msg. it let me click on a [go to video anyway] button, and it worked
i think tetenal's assessment is final - - there will always be probs of one type or another in this area for we mac folk