Solved GTK Radiant Shader problems

[Spectre]

Hello Guys and Girls!

After my rejoin app I tried to continue my fav hobby: making maps. There wasn't any problem when I used GTK radiant 1.6 on Win 7, however Win 10 sux very hard, when it comes to making maps. There wasn't any difference between the installation and setup: all of the folders and directories are perfect.

When I run radiant and make a brush I get that certain blue-black "texture" with the sign "Shader not found"...ok...I start using caulk selection and when I toggle textures window: it is empty. I checked all of the possibilities of wrong directories, refreshed all of them, but the folder is still empty. (However I have at least 70 images in texture folder with .tga extension. (I tried to convert them to an other supported format, but it was just waste of time). Well...I visited some of these tutorial sites to find the solution, but most of them describes only the basic steps...

edit: switching versions of radiant didn't solve the problem.

Maybe some of u could help me. Any helpful comment is appreciated
Thanks in advance!