Gardenkiller i hope you don't mind but I took the liberty of copying your photo and emailing it to my county extension office the lady there has been very helpful with my problems she got back to me within hours here is her reply.
Hi, the photos bring some photos to mind, but I am not confident of any one diagnosis. Are there any critters in any of those peppers when you cut them open?
Our retired vegetable expert still does some scouting for local commercial growers. He turns in a weekly report with photos, and the 05 through 07 reports are on our website. I am going to suggest you look at the pepper photos with his explanations from the 2006 reports of July 21 and August 4, as well as the 2005 August reports and see if you may have scald, blossom end rot, and/or virus symptoms. The August 29 report has leaf symptoms of the virus. At
www.msue.msu.edu/monroe choose local vegetable report under "What's New?" The past year's reports have links near the top of the current report page, and they are chronological.
If it is scald and/or blossom end rot, you may not continue to see symptoms as the season progresses. For any of these options, there is little you can do besides ordinary care/watering. If you can see a pattern or symptoms different from Paul's photos, feel free to send me more photos/questions.
You can also send samples to the MSU diagnostic lab, but I understand that is not very economical for home gardeners.
Dale