Yes, selecting the "Managed textures" really helped to remove problems with Antonijadis's textures in the psVoodoo mode.
Thank you.

Here's one more version of OpenGlide to try

Thank you. With your latest OpenGlide version the textures are not displayed. There are only few exceptions like doors, as you can see in the screenshots. The first one is with the original textures, the second one with JC's textures. Managed textures are not selected here.

Thanks for the feedback. I guess that's not looking like a winner.

Don't worry. I think it's not worth more of your time, it's only a marginal problem. I'm probably one of the last people with such old graphics card. And I also plan an upgrade to a more powerful system. I can use your "x" version of OpenGlide or psVoodoo so far.
Thank you for your time and effort.

You'd be suprised how many crappy graphics cards are out there. Thanks Intel\Dell!