this be my first projector and I do alot of research before buy it . it meet a most of the requirement in term of picture quality and brightness etc. . everything be ok for three month ... then the pixel start die , -lrb- which mean there be dark and light spot all over the screen -rrb- within one week we have close to 30 dead pixel spread across the screen . the Amazon 30 day warranty have expire so we contact Vivitek and that be where the real disappointment come . they never answer they telephone !!!!! they do not return message !!!! they do not answer e mail !!!! there be no way to get a human be at this company ... and I really try . they customer service be the worst I have ever encounter and will never buy anything marked vivitek again . I contact Amazon about this and they be give I a refund so I be buy a Epson this time . Adios Vivitek !