If using an IR Pen for interactive whiteboard - I can't use right click as the pen is only left click!
If there was a button to press that swapped right and left mouse clicks that would solve it! I have found a freeware app called dmouse which does this - so I'll use that for now. You can set it to always sit on top of every other window. It's just a shame it has to sit there when I've taken all the other tools off screen!