I have noticed in SW2013 SP1 that when I am sketching, and adding a dimension, sometime the box fills up and I can not click the green arrow. I need to click somewhere else to clear the box, and then I can click the green arrow to accept the dimension that I have typed in. I have attached a picture showing the issue, or interference.
How do I turn off this memory of all the dimensions that I have used that day?
There is no way to turn this ability off. However, are you aware that you can simply hit the return key after typing the value to accept it? This should be much easier than typing and then clicking on the OK icon.