Problem with youtube

I got one big problem,i format hard disc and install windows,and all drivers…..
everything work fine,but one thing is that i can watch videos on youtube,when i open some youtube link,i got problems,only for watching videos.i installed everything witch is important to watch videos on internet.
what could be the problem?
Answer #1
1_Make sure that adobe flash player is installed correctly .
If you still have the problem
2_Change your browser .
Answer #2
You need adobe flash player and also macromedia something…Oo i had to install both to be able using it…
Answer #3
everything work fine,but one thing is that i can watch videos on youtube,when i open some youtube link,i got problems,only for watching videos
You mean you cant watch Youtube embedded videos in some other site but when you open youtube links it wont work ?
or You mean to say that you cant watch videos on youtube?
You should get Adobe Flash Player as suggested above and get the latest one