Topic: Javascript Problems?

i tried playing something on youtube and it said that i have javascript disables or that i have an old version of flash player. well i have java enables and the newest flash player out and it still says that. ive tried restarting my computers and even did a system restore to before the problem but its still wont let me play things from sites such as youtube.com. but when visit one site web design I more then half problem I solve it is the Grand site but few disturbance occurring can someone tell me whats wrong