Hi i recently upgraded my stock nvidia g210 to a Radeon HD6870, after installing i noticed my screen would flicker/flash, it does this in idle but seems to be worse in games. My LCD 24" monitor only has VGA input so i use a DVI to VGA adapter connecting to the graphics card. My screen didn't flicker with my old card from vga to vga. I've played round with CCC and cant get it to stop flickering, i've also noticed it only does this at 1080p and not at lower resolutions. Someone please help!