problem with youtube after instillation
 

hello...im very new to this..i've read pretty much every post...but i have a problem with youtube..for whatever reason it will lock my internet up and not even bring the page up...then as i x out of it..i can not even press the internet icon to bring up the internet..i unistalled and re installed the program to run youtube and it was working fine a few days ago...need some suggestion on what this might be....sleepless in fairfield california