I'm in the same boat with Bob. I've had my IRIQ as long as anybody and never had a problem. It finally went through a set of batteries after about 4 months and I didn't feel like that was unreasonable. I continue to "tweak" the configuration from time to time. Sometimes it makes sense to really look at the screens you've built and ask if they really make sense.

Recently, I moved one button from one activity screen to another and completely deleted the original screen. I just wasn't using it (except for that one button). It's an ongoing usability study.

Charles