hey i wanna ask.. my lappy is V3203TU, i got it about 7mths ago, and now i got problem with my screen...

sumtimes if i move my screen up or down, da screen can go white(as in totally white).. so dats why i haf to move and adjust it until i can see a proper image.. so wat to do now arr??? shud i send it in for warranty??? wat is da problem with this actually?? and if i send for warranty, wat will they do arr??? will they replace a new one???