I recently puchased this on ebay to start testing discrete SMT components with on boards. I know it hooks up to a computer, but is that required? It seems the unit stays on the middle setting and there is no way to change that setting I take it this needs to be done through software? This is my first huntron and I do understand the concept - which is pretty interesting for testing transistors and such in circuit. I just don't know if I need the computer to use the equipment or change the setting to low so I can see the caps better at the moment they show as a short would. Any help would be great as I am pretty new to this, but have a strong background in electronics.