Yeah me too. but why the double click is working fine? both events (the view button, and the double click) raise the same event...
And they both call the same method so there are absolutely no differences in the server-side code.
Can you test admin/non-admin account do they behave the same? Also can you check if delete message image button behaves the same or not? delete message
is exactly the same as view but dblclick is done through js
Can also you quickly go through all the buttons links in the message center page and check if there are more non-working buttons/links?