Is the Xbox360 a heap of rubbish?

This is the second time my xbox has broke down. The first time it needed a new motherboard (About a month ago). Now i've got sound but no picture.( it's not even a year old yet) Any one else had similiar problems. (Am sending it back again but wondering if it's worth the hassle)

imo, xbox mostly has such problem. It allows 1 to 1 exchange. so juz do it.