I have been working on the $50 robot with my 13 year old son for a science project for school. He has done most of the soldering himself and has been very excited about what he has learned to this point. We are having trouble with the servo holding to modify. I have read several posts and answered several of my questions. But I can't seem to get the .hex file to load properly. We are very new to robotics and have enjoyed working on this together, so if anyone has an answer please understand we are "Very New" and need simple intructions. I have attached a screen shot of the error I receive. Thanks in advance for your help