I have the same problem. I am using version 7.0.7022.
Adding comments and then marking them as read does not work.
I see this in the Eclipse plugin and on the website.
When I try to use the "Report an Error" link at the bottom of the website, the server hangs until I close the report window (I assume the report doesn't get sent). When I say "hang" I mean, no other user seems to be able to perform any other action while the report is trying to be submitted.
Other members of my team have had the same problem. The "workaround" is to change the name of the review to "[COMPLETED] <original name>" and then just ignore it in your list of reviews that require your attention. However, this workaround will soon become tedious once we have dozens of reviews that can't be closed cluttering up our dashboard.
Please let me know anything that I can do to help track down this problem.
Thanks!
-ang