I was playing with some settings in Amd catalyst control centre the other day when i clicked on a setting that had something to do with horizontal and vertical sync or alignment (i cant remember the exact name of the setting). when i ticked the box for the setting (which was found where you can adjust the horizontal and vertical positioning of your screen) the screen instantly started changing colours from purples to greens and blues then black. i am now unable to change those settings back due to not being able to see the screen.
i have started the computer with my old onboard graphics card and the screen works fine but when trying to return amd settings back to factory default and plug graphics card back in it still does the same thing.
i am running a Raedon HD 7750.
i have also tried uninstalling and installing the drivers and anything else that had to do with Amd but still the problem keeps happening.
how can i fix this problem.
the setting i checked only had to do with the positioning of the screen.