question about nokia xpressmusic phone?

[hotalovingwife<3]

i just brought myself a phone-nokia xpress music. im not sure how to operate it. i started using the youtube and it downloads the videos normally like on the laptop. half an hr later, it goes completel black and shows 'connecting' and never uploads the video. why is that? how do i revert it back to the normal youtube thing? thanx