Desktops & All-In-Ones

[USER15032013]

Please what can i do, my screen trembles, i update all software windows 7 and Intel Acelerator 3150 but the problem remains, I move the option to 60 or 75 Hertz but still trembles, what can i do, Can Be Hardware.?

Veritron N281G

Thanks

Gerardo

[HK53T]

you dont say what it is connected to or what resolution

here are specifications http://panam.acer.com/acerpanam/desktop/2011/acer/veriton/VeritonN281G/VeritonN281Gsp2.shtml