Hi Vincent.
It would appear from your screenshot that you are running OSX. Can you confirm that you're running DashBoard 6.2.5?
If you close all of the open tabs in DashBoard before you exit the application, does it still lockup when you start it the next time? The issue you're experiencing may be unrelated to the SRG4400 and have more to do with a few issues in they way OSX handles restoring the previously open tabs in DashBoard.
If you are running DashBoard 6.2.5
and the issue disappears if you close all currently open tabs, I may be able to provide you with a patch for the issue.
#DashBoard