How to play this game? I have an old(?) installer, O2Jam 3.50 but the game just does not start. It either does not find a server or just quits with a "Cannot execute" error message, but TBH I don't have those file as you on the video (e.g. I don't have X3SoloKR.exe).

Thank you for your response!
You can download it through the following link: ( https://app.box.com/s/7qospa1ckrhge1lt1czcv145mutzapf2 )
I've included the dgvoodoo2 files that currently using.
If you try switching between windowed and full-screen modes using Alt+Enter, you'll easily see that it works fine in full-screen mode, but the issue occurs in windowed mode.

Thanks!

I fixed the problem. I'll release a patch version some day that includes the fix.

OH MY THANK YOU!!

I'd rather share it with you now though, because I don't know when I will release the patch version:

http://dege.fw.hu/temp/dgVoodoo2_83_dd_fix.zip

Waa!!
Thank you! The issue with graphics breaking in windowed mode has been resolved.
However, I've noticed a minor problem and would like to inquire about it.

This game allows switching between Windows cursor and game cursor modes by pressing F8.
Since this is an older game, quite a few people experience frame rate drops in game cursor mode, so many tend to press F8 once to switch to Windows cursor mode.

The issue I've discovered is this:
If you adjust the size of the window while in windowed mode, the cursor coordinates may become misaligned when in Windows cursor mode.

Would it be possible for you to look into this issue as well?

sample vid : https://youtu.be/6uLJo9SlRv8

This symptom was not resolved in 2.83.1