Flash with Youtube

Flash works on all my browsers but i have graphics errors or glitches when i click on a video on youtube

But when i go look at the video on the main channel there are no graphic erros

What i mean by graphic erros the the rgb is all messed its purple and green and pink mostly dependeing on the origanl colors

Samethings happening to my windows media player but that was happeneing before this

Until i had the new flash update evrything was working well with youtube in firefox and internet 8, chrome had the same color erros as windows media player before i downloaded the new flash update but i think that is because i was trying to change the windows log in screen backgronud and i messed up

Can anybody help i willl be very greatful and if you need any GRAPHIC DESGIN FOR FREE I will give it to you if you help me..