I used to face the same problem earlier when I had just started to install mods (especially clothing mods) and even I thought that my video card is the culprit.Lol. No your video card is not to be blamed. Its just how you install the mods. This is what i do to install mods correctly. I hope it helps.- 1- After downloading the file I copy it from the downloads folder and paste it on the desktop. Here I extract it with winRar 2- On extracting you'll mostly find 3 items (there could be more though) an esp and 2 folders named Meshes and textures. 3- you need to copy all 3 and paste them in your data folder -example - paste the contents of the meshes folder in Local Drive D\programfiles\bethesdasoftworks\fallout3\data\meshes and those of the textures folder in Local Drive D\programfiles\bethesdasoftworks\fallout3\data\textures. The color change\flicker problem usually occurs when the texture paths are not observed. I hope this method helps else there is yet another thing ( that I know of ) which can be done to rectify this problem. I made sure they were all in the right folders under data but im still having the messed up color problem