For those interested, I had my interrogation today. PM was implanted May 2006. This is 7 months after the last checkup. I am pacing 100% in the ventricle, same as last time. Pacing 74% in the atrium compared to 54% 7 mos. ago. Leads are good and stable, life left on pacer is 5.8 yrs. We talked a bit about atenolol and some of the side effects but overall I am doing very well.