Installed video card but having issues need help

Sniper434

Honorable
Jan 5, 2014
82
0
10,630
alright i just installed a new video card in my comp, the video card is a Radeon HD 7770, when i plugged in, its getting this wierd display were the green in everything is more out there and everythign is kind worped, i can still c everything but its wierd, and also there is horizontal lines going across the screen, im not sure whats going on but i did install the drivers from the website , and i think i did this right, just need some help to figure out this problem