Green screen in games

Hello I bought a new pc when I play some games green screen appears for one second but it only happens sometimes not often how I can fix it? also it only happens in some games not all the games that I play

Zotac nvidia gtx 650 2gb 128bit

i5 4440 3.1ghz

4gb ram ddr3 1600 mhz

Windows 7 64 bit

Have you updated your video drivers since you bought the computer? if not... that may solve the issue.

Update your audio driver while you are at it.