Dieu truoc tien ma ban can phai lam la : right click tren mot cho trong bat ky tren nen Desktop, chon Properties/Setting/Advanced/Monitor [neu may dang su dung Windows XP], hoac bang cach tuong tu [neu may su dung Win 98, ME...]. Trong phan Monitor Setting, ban nen chon muc do cho Screen refresh rate o tan so cao nhat ma monitor cua ban co the display, thong thuong cac loai monitors phai o muc toi thieu la 75 hertz tro len moi khong bi rung man hinh. Dieu nay tuy thuoc vao moi chung loai may va muc do screen resolution ma ban dang chon cho monitor [800 by 600 pixes or 1024 by 768 pixes etc...]. Tot nhat la de o muc 85 hertz, hoac cao hon, neu monitor cua ban cho phep. Nho la screen solution cang cao thi screen refresh rate se ha xuong dan cho den muc toi thieu [60 hertz hoac 70 hertz]. O tan so nay, man hinh se rung rat kho chiu va co hai cho mat, neu ban phai lam viec lau voi computer.
Sau khi da thu cac buoc noi tren ma van khong khac phuc duoc nguyen nhan, thi moi co the xac dinh cac buoc ke tiep. Ban khong noi ro Laptop cua ban loai nao, nen khong the cho ban mot cau tra loi chinh xac duoc.