I have 2 questions about bump maps.

1) Sometimes when I try to use the Nvidia filter told to use in the tutorial here:
http://forum.toribash.com/showthread...66#post1269366
The bump map does not come out right. It's hard to show in pictures, but the whole image is blue, and no depth is shown at all. EDIT: Could this be a problem due to a channel problem?

2) Also, I don't have bump map items BUT I edit them in the "custom" folder to try to preview. Unfortunately, when I save a bump map as a name such as head_bump.tga, I load up the game and there is...well...no bump mapping. I use all of the right settings for the file like 128x128, targa file type, etc. And if you are wondering how I got these bump maps if mine don't work, I found examples on threads that I decided to put to the test.

Side Note:
I have shaders with all items checked.

PLEASE don't post something useless like "o man, idk wut prob iz" or "ask so-and-so, they might help". I really only want HELPFUL replies.