I have a Asus computer running Windows 8.1, with plenty of speed and memory. However after downloading Nexus Mod Manager, installing it and then running it. When I go to down load a mod the manager says it cannot find the file. If I try to download manually the file will not show up in the manager program, even though I extracted it to that. I installed the Skyrim Ledendary Edition; however, it would only load through Steam. So unlike in the past it doesn't show up on my computer. What am I doing wrong?