I have a Guest Windows XP on Virtual Box 6.1.4r136177 (Qt5.6.2) running on a Windows 7 system.
The VM has VBoxVGA as graphics controller, 256MB of Display Video Memory and 3D Acceleration is checked in the Display Settings for the VM.
When installing the Guest Additions in the Guest Windows XP it is not possible to check the Direct 3D Support check box as the check box itself is greyed out. The text for the check box is black in colour.
HOW can I get Direct3D to work on my system?? I have tried yo install the guest additions in safe mode on the Guest Windows XP system but that did nothing new. The check box was still greyed out.