Question GLScene compiled under Windows v. Linux (Ubuntu)

Dear gurus of the GLScene and Code Typhon,
unde Typhon 5.3 I have developed a GLMesh object to display and play around with in GLScene but the rendering is a wee bit off. If I compile the very same code with Typhon 5.3 under Windows 8.1 the rendering is fine, as you can see from the following screen shots.
The Linux shot

The Windows shot


The same problem happens with the Typhon IDE example code with the fxy example in the Code Ocean directory
/usr/lib/codetyphon/CodeOcean/GLScene/samples/graph/fxy
The Linux shot

The Windows shot

I have played around with things like the order of objects in the scene hierarchy and so on, to no avail.
I would be most grateful for any help on this matter.
Best regards,
Gustavo.

Looks like Depth Test is somehow disabled when in linux.

Dear Sir,
do you know if the 5.4 release attends this problem? can you recommend something for me to do?
thanks in advance.

Dear Sir,
do you have a update on this problem?
thanks in advance.
G.

Dear Sir,
I realize that you and your working group are busy and hence cannot attend every problem arising from CodeTyphon, its derivatives and associated packages. I understand this fully. Nonetheless, I would like to contribute to solving my problem (which I assume affects other people as well) regarding z-depth-testing of scene objects rendered in GLScene. However I need help. If you could assist me by identifying for me the units or procedures and functions that need to be checked and corrected, I would be most grateful.
Thanks in advance,
Gustavo.

Dear Sir,
any news about the problem I reported? As I stated earlier, I am willing to help once I know where to start looking.
Best regards,
Gustavo.

Thanks!

Dear Sir,
is there any news on this issue? Forgive my insistence but it seems to me an issue that can be resolved and I am willing to make an effort myself. I think I can contribute if, as kenlee has posted, depth testing is disabled. However, the problem I have is understanding the overall flow of the project and of the GlScene package. I have tried the debugger (the breakpoint tool) but it does not break sufficiently soon.
In short, if you or one of your assistants can give me an (ordered?) list of the procedures invoked for the creation of the scene rendered in the Fxy example (from the GlScene samples directory), I think I could give it a try.
Best regards,
G.