QUOTE(Misterioso @ Jun 15 2010, 03:40 PM)

I haven't heard of the make you specify, but for the amount you paid for it, I'm wondering if you bought it second-hand? My flute teacher recommended a Trevor James student flute when my son started playing, and at that time the going rate for these was just over £300. He added that if we went for anything cheaper, we would always have problems with it. It seems unlikely that you could buy a good student flute for £80, and the fact that it is advertised as recommended for students doesn't mean it is a good student flute!
Lindo flutes are exceedingly cheap : so that £80 is probably a new price. However (and sorry to put a downer on things), the reliability issues I've seen with Lindo are many and varied, and mainly centre around the fact that the metal used in Lindo flutes is in places almost as bendy as Plasticene (well, that may be an exaggeration, but you catch my drift).
If you're not getting any sound, there may be a strong case here of it being the flute and not you : if you can take it to a flute technician to see if that's the case, I feel that'd be a good move.