I have Intel i5 750 + motherboard with H55 + XFX ATI Radeon HD 4770, windows 7


I just installed my graphics card and I still have blue dots in black areas and screen isn't smooth. I have a ViewSonic 22" vx2235wm Monitor, is this the reason why my screen refreshes every other 1-5 minutes? When I browse i get an array of blue dots as if my graphic card is shitty or something..Connected DVI-to-DVI, cable is fine.suggestions?
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More about intel motherboard radeon 4770 windows
  1. Processor: Intel Core i5 750 @ 2.667GHz(4CPUs), ~2.72GHz
    Ram: 4GB
    OS: Windows 7 Ultimate 64-bit
    Graphics Card: XFX - ATI Radeon HD 4770, 512MB GDDR5
    Motherboard:Gigabyte Tech, H55-UD2H
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