This is weird. After playing for a bit in the last few quests my character goes into a "always run" or "always walk" type of movement and it is sideways ! During those periods I have no control , movement keys do not work. I have uninstalled Oblivion and Nehrim, installed the updates/patches and the gameplay is normal for a bit then reverts to that uncontrolled movement. This may have been covered somewhere on the forums but I have tried many search words and nada.