I'm using CS5 and when I am using the eraser tool it works most of the time, but every once in a while it erases in a completely different place than where I am clicking. When I am spot-erasing, it will spot somewhere else, when I am dragging and erasing, it will erase this huge line to the different area it has diverted to. I have no idea why it is doing this, I have had this problem before but it randomly disappeared before I did anything about, but now it won't stop! I really hope someone knows what the hell I'm talking about and how to fix it.... please help me!