Bizarre Laptop problem If it's only youtube it could be a flash player issue. What browser is it? Have you tried another browser?
Bizarre Laptop problem Also whats the laptop for? I would splash out a little on a decent one they last longer. My old laptop was £700 but I did all my gaming and college/uni work on it for 5 years lasted me a while.
Bizarre Laptop problem Actually just re-read and sounds like the wireless or ethernet card could have a fault.