First thing I'd do is:
0) Update windows and set a Restore Point
note: You might want to backup your important files also incase of problems
1) Uninstall your old video card driver(s)
note: I know you can do this from Device Manager for sure, but I'm not 100% sure about from Add/Remove Programs
2) Remove your old video card
3) Install your new video card
4) Install drivers and set as default
5) Update video drivers
6) Update BIOS incase of conflicts
As far as I know, that should do the trick. If you already follow those steps and still have difficulty, I don't know what to tell you. Good luck and Merry Xmas.
0) Update windows and set a Restore Point
note: You might want to backup your important files also incase of problems
1) Uninstall your old video card driver(s)
note: I know you can do this from Device Manager for sure, but I'm not 100% sure about from Add/Remove Programs
2) Remove your old video card
3) Install your new video card
4) Install drivers and set as default
5) Update video drivers
6) Update BIOS incase of conflicts
As far as I know, that should do the trick. If you already follow those steps and still have difficulty, I don't know what to tell you. Good luck and Merry Xmas.
"The true value of a human being is determined primarily by the measure and the sense in which he has attained liberation from the self." -Albert Einsetin