Star Wars KOTOR 2 character stuck

I played this game recently and loved it. When i was in solo mode however, my character would freeze in place, with no keyboard or mouse movements working to control the player, only the gui worked. I could see NPCs running around me, so my computer was not frozen. Solution: Plant mines, take medpacks, take stims, and use force powers.

This, if done a few times seemed to 'unstick' my character from being locked in place in star wars knights of the old republic 2.