I got my 1st Neptune mid 2004. It froze up once. It only required the batteries be removed/reinstalled. Then some bitch slammed her helmet on the LCD and broke it. I sent it in, and got a new screen for about $80. It took at least a few weeks, but was still cheaper than replacing it, or buying something else. I also opted for the rubber protective sleeve after the incident. Overall, I was more upset that this stuck up bitch broke it and I was stuck with the bill. She's got money and I live paycheck to paycheck. She jumps at a bigger DZ now where they kiss her ass a little more now so I guess I'm better off.