Common Folder Shader Image Missing

[Flame[1up]]

LOL whenever i try to use a common shader it shows the shader image not found  thing and if i have tons of those in a map i dont know whats what this is bothering me becuase th other day i went to a friends house i got his GTK up and guess what his worked perfect after i set it up again how do i make the shader image missing thing to a color coded checker board thing

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[Puss-N-Boots]

Some shaders won't show an image preview because the author of those shaders either didn't bother to make one or it's in the wrong format. The only way to know for sure it's there and works is to try it out 

Happy mapping 

[Flame[1up]]

LOL problem fixxed by sw00n over xfire i was missing a few files in my Urban Terror folder