I did a quick search but was not able to find the answer, sorry if I missed it, Anyway, I just bought Skyrim about three weeks ago. I installed using the disc and got it to run. Unfortunately, it started acting up after I tried to down SKSE. So I removed it, uninstalled the game, and re installed using Steam to make sure all updates were added. With no mods, I deleted all Skyrim folders and mods before re-installing it, I still can only power attack. I added the Unofficial Skyrim Patch, which smoothed out some of the transitions that were jerky when set at higher details, but did not solve the issue. I have tried crouching than standing, sheathing and drawing again, and lowing the detail to low. Nothing is solving the issue. Any idea what could be causing this? I tried to use the f key instead of my mouse but it does the same thing. It is the only issue I have with the game, but it is driving me crazy because I keep running out of stamina mid battle. I have played 9 hours in Helgen because I saved right before the first battle to test different solutions. Any tips would help.