Actually, I accidentally found a solution I believe. While reading a topic of a similar nature, there was an instruction to hold the shift key down while using the down arrow to select locations. It successfully highlighted all of the locations without locking up the program, and it did map it out.
Now beyond 100 locations it would not provide turn by turn navigation, but that is completely ok. We really needed mileage numbers.
Once you hold the shift button down and arrow down to select all of the items in question, you can right click on your mouse over one of the highlighted rows and select add stops on the map. It was beautiful!