Hello Rupert Rieger,
To run application without white screen, you can try to do the following:
1. Close all Visual Studio windows.
2. Uninstall Visual WebGui Professional Studio on your machine.
3. Go to: %ALLUSERSPROFILE%\Application Data\Gizmox\Licenses and remove any *.lic files that are in this directory if there are any. In MS Windows Vista and Windows 7 it is in the “C:\ProgramData\Gizmox\Licenses” or “C:\ProgramData\Application Data\Gizmox\Licenses” directory.
4. Log in as the user “Administrator” if using MS Windows Vista, or a user with full administrative privileges, if using a different MS Windows operating system.
5. Install Visual WebGui Professional Studio.
6. Open MS Visual Studio and on the menu, click on Tools -> Gizmox -> Visual WebGui License.
7. Click on Next and continue until you get an activation confirmation.
Sorry, we can provide you with license key tomorrow ASAP.
Hope it helps you.
Best regards,
Max Mashnitskiy
Support team member, the Visual WebGui team