hello i've been using google chrome for quite a while now and youtube has been working and loading fine. but recently it stopped working. the homepage of youtube works fine but when i click on a video, there is no play button or anything just a black screen where the video is supposed to be. everything else on the page loads fine like the comments, search bar, other videos, etc. i have uninstalled all of my extensions and the problem still occurs.

i am on a windows vista home and version 12.0.742.100 of google chrome installed