This has been discussed on many computer tech sites and it seems nobody knows how to fix it.
As soon as you try to run Opera sandboxed a Sandboxie message pops up saying (Email reader "Launcher exe" is not configured to run sandboxed) and apparently there is no fix for this .
I don't use any e mail programs first of all but that message repeats itself every time you click for Opera to be run in the Sandbox in the Sandboxie program.
Other browsers seem to work without any issues but Opera is my favorite and if it's possible to use it while using Sandboxie thats what i would like to do.
Thank you for any assistance.