This morning, we encountered an issue where users will notice a cosmetic issue with the chart display on Email Batch Status Report. What happens is users access the report and notice only one contact has opened the message and everyone else hasn’t taken action with email messages sent.
Example:

Luckily, there’s a workaround.
To see who interacted with your message, click the pie chart to see the accurate results. Alternatively, you can do an email batch report and select the appropriate message (or period of time). From there you will be able to view the contacts under the conditions of what you’ve searched for.
We’re aware of the issue and plan to have this issue resolved tomorrow evening. This data is all there and is merely a display issue on the Email Batch Status/Broadcast Report.
Thanks for your patience and understanding in this matter; we’ll update this post with further developments.
Updates
7:00 PM 6/16/2010: This issue has been resolved.
{ 2 comments… read them below or add one }
This doesn't work either… the slice of the pie for the 1 open is so small you can't click on it… And even when you click on the "nothing" slice the number of contacts it pulls up doesn't match what's on the pie to begin with.
I put the email report in my dashboard then click the OPEN button to see a list of people who opened.