You are having a problem with your Windows computer that is isolated to a single graphics editing program that you use every day in your work. When you described the problem to the customer service support person for this product, she told you that the only fix for it is to edit a key under HKEY-LOCAL_MACHINE\SOFTWARE. She has assured you that this fix will work without causing any problems, but you are wary of doing this. Descript the steps and precautions taken.