Can't see a shader I have in my assets folder...

Try to reimport the shader. Does it give errors? What's the name at the start of the shader?

 

File a bug report and attach the shader file.

 

I did not receive any bug report with this shader, but I think I have it from your other bug report The problem is that the shader contains invalid characters, if you select it in Unity the inspector shows little cross signs. Currently Unity reports an empty error for this shader and Unitron displays those characters as spaces...

Anyway, here is the fixed shader:

Code (csharp):

1. Shader "Window (unlit)" {
2. Properties {
3.     _Color ("Glass Color", Color) = (1,1,1,0.5)
4.     _Cube ("Reflection cubemap", Cube) = "" { TexGen CubeReflect }
5. }
6. Category {
7.     Tags {"Queue" = "Transparent" }
8.     Blend SrcAlpha OneMinusSrcAlpha
9.     ZWrite Off
10.     BindChannels {
11.         Bind "Vertex", vertex
12.         Bind "Normal", normal
13.     }
14.     // cards with cube maps
15.     SubShader {
16.         Pass {
17.             SetTexture [_Cube] {
18.                 constantColor [_Color]
19.                 combine texture * constant, constant
20.             }
21.         }
22.     }
23.     // cards without cube maps - just simple transparency
24.     SubShader {
25.         Pass {
26.             SetTexture [_Dummy] {
27.                 constantColor [_Color]
28.                 combine constant
29.             }
30.         }
31.     }
32. }
33. }