Slider Issues

Hi, I just recently installed a new motherboard, CPU and hard drive in my computer. Now for some reason, I cannot change the sliders. I guess they DO change I just cannot see it! For instance I just made some new skirts that had leggings underneath and my customers could see that the leggings were cut off right below the skirt yet I saw them as going down to the calf of the leg. It's not just the lower body, it's all sliders! Even when I change the color on my moddable eyebrows it changes my eyelash color too. I don't ever recall things being this way. Any ideas? Thanks