TextMesh Pro Shader problem on specific windows machine

Hi there, we created an educational app made for schools. We have no problem on our work machines, no problem on any client's mac or ipad. But on some of the client's windows machine, TextMeshPro fonts will not show (classic shader problem, pink squares, see screenshot).

Specs (that I have) of the client's machine in this picture :
Poste HP DC7800p
Core2Duo 2.67GHz
4go
Graphique Intel Q35 express
Directx 11

Any help appreciated, we would really hate do go back to unity Text instead of TextMesh Pro.
Thanks!

 

Which TextMesh Pro shader is used in that scene?

Start testing text objects using the mobile distance field shader and see if those work. Then test the normal distance field shader.

I believe the issue is due to this Q35 Express graphic chip set not supporting shader model 3.0.

 

I've tried the normal distance field shader, same result on the faulty machine. Do you have any other idea? (I can of course change to normal Unity text but I would hate that)

 

Did you test the Mobile Distance Field shader? The mobile one has lower requirements.

 

Yes, we tried both.