> Has anyone had trouble with their heart rate monitor? I thought the
> battery had died, but after putting in two different new batteries,
> it's still not working. Any thoughts would be greatly appreciated.

I also thought that my battery had died, but there was no improvement
after I replaced it. After working well 95% of the time for about a
year, I started getting lots of flat lines in my data. For example a
flat line of 80 for 10 minutes, followed by a few downward squiggles,
then a flat line of 40 for several minutes.

Does anyone know how to alleviate this problem?