Linuxcnc/Probe-basic exits with error on loading g-code into PB editor/viewer

Thanks  in advance and I hope the text below and attached files have the information needed to help.

I am upgrading a working system from axis to Probe-Basic.
By "upgrading" I did the following:
Made backups of config and .nc files
Partitioned / Formatted HD
Used Probe-basic Quick-start to load Linuxcnc 2.8.1 and Probe-basic

Sim loads fine but on selecting a g-code file to load or when posting a conversational setup to simulate Probe-basic crashes.
I think it is related to the Opengl error in linuxcnc.report file.
    "ERROR: In /work/standalone-x64-build/VTK-source/Rendering/OpenGL2/vtkShaderProgram.cxx, line 431
vtkShaderProgram (0x55de6fe8ef60): "

But at this point I do not know how to test the opengl compatibility or if there is another problem.
Geforce 6600 LE graphics card.

I tested Axis with my backed up configs and the cnc system works as before with Linuxcnc 2.8.2
I also installed the Nvidia driver.....YEP won't do that again!  

Any advice or help is greatly appreciated.
James


server glx version string: 1.4
client glx version string: 1.4
GLX version: 1.4
    Max core profile version: 0.0
    Max compat profile version: 2.1
    Max GLES1 profile version: 1.1
    Max GLES[23] profile version: 2.0
OpenGL version string: 2.1 Mesa 18.3.6
OpenGL shading language version string: 1.20
OpenGL ES profile version string: OpenGL ES 2.0 Mesa 18.3.6
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16

-  What Linux OS being used including kernel type?
Debian Debian GNU/Linux 10 (buster) 10 buster
kernel-vers -v: #1 SMP PREEMPT RT Debian 4.19.194-2 (2021-06-21)

-  What version of Linuxcnc is installed?
2.8.2-11-g6a3d0a434

-  What version of QtPyVCP and Probe Basic is installed?
QtPyVCP Version: v0.3.19+15.g3ad0cc9c (opt_parser.py:199)

-  How did you install Probe Basic? Quickstart guide? Dev Guide?
Quickstart

-  Have you gone through your ini and hal files and compared to the sim config files to make any changes needed?
Sim fails in same manor as non-sim config

-  Have you added all of the necessary files in your config folder that probe basic needs to run?
Yes

-  Have you tested the sim version to see if the problem exists there also? (if the sim functions properly, it is a good indicator your issue is in your config)
Sim has same problem.  Probe-Basic screen loads and crashes when you load or conversational g-code is loaded.





 

Thanks for the help!  On a Saturday no less.
Not an RPI... If you mean Raspberry Pi.  Re-cycled desktop system.  Sorry if that shows some ignorance but that is what the acronym designated gray matter came up with this time.

RGB Gears turn at ~60 fps.  Looks good.

 

** Solved! **
Thanks again! I fell victim to the "what am I doing wrong" rut. Went to the desktop graveyard and liberated a ATI Radeon R5450 graphics card. Plug and play.
The image had some signal ringing with the VGA cable but once I changed it out for a HDMI cable, image and text looks great.
Thanks for kicking me out of the rut, and pointing me in the right direction.
Best Regards, James