Yup I was experiencing the same problem as Dan yesterday. We have 12 email programs and it's doing exactly that where I'm getting an error message that prompts me to refresh my browser, except for 1 email program. These programs are using static lists, and once the email was delivered, the one email program that wasn't having any problems shows that the people who were delivered the email to, became members of the email program, but not the other 11 email programs that were having problems.
I also wish that you can click on the clicks results or open results from the dashboard so you can see from that view who clicked on what link.