B4J Question Main form won't display in Compiled Program

[oldeast]

Hi everyone,
I have a compiled B4J program that I distribute to eight users. I am distributing it with Java 11. It has been running fine on Windows 11 for all users except one.
In this instance the program shows a main form startup toast message OK, but the main form won't display. I have installed the program on my computer and opened the user's data file with no problem.
I have the user's laptop and have downloaded and installed all Windows 11 updates and have done a net framework repair.
Any suggestions as to where to check further would be appreciated.
Thanks
Graham

 

[stevel05]

Check that the form is not outside of the visible screen, To test, you can do something like:

    MainForm.WindowLeft = 0
    MainForm.WindowTop = 0

 

[oldeast]

Thanks for the suggestion, will try anything.
Any idea why it's working perfectly on the other installs, most are 15in laptops the same as the defective one.
Thanks!

 

[oldeast]

Just checked, I already have that coded.
I rather suspect Windows is missing something on this laptop rather than a B4J coding error.

 

[stevel05]

Have you tried running the debug bat (in the same directory as the main app)? Assuming you used Build Standalone Package to create it.