crystal axes A B C are invisible in vnl builder installed on ubuntu and kubuntu

[nanosolar]

Hi there,

I have installed the vnl on ubuntu but the A B C axes were invisible in builder, but they are present in the ROV-ray processed image. wondering if the GTK is the reason, I moved into Kubuntu operating based on QT opengl graphics. but still I have the same problem.   could u please help me with this? thanx  

[Umberto Martinez]

It would be nice to have more details about the VNL version you are running and your system information.
From the main VNL window go to Help -> About virtual nanolab and copy and paste all the information reported there.