Sometimes technology can really help you. Sometimes it can be really really annoying. That's what I've found with my Garmin Forerunner 210. I love love love the watch, except for the heart rate monitor. And I must admit, I am on my second strap in less than a year. Apparently you have to take care of these things!
This morning I found an excellent link on troubleshooting the heart rate monitor, so I am posting here.
Hopefully I will be able to get readings less than 200 bpm today! I did update the software on my watch this morning, and I have been diligent about rinsing my strap after every use. Not so diligent about washing it with dish soap...