Good daytime everyone.
I couldn't find a suitable forum to post these graphic issues, so I gonna post it here.
I'm now working on a 'menu.dat' for a Russian Quake translation.
It's all working for a while, but there's a pesky graphic problem.
In a nutshell: white border.

These are two little placeholders drawn in Paint.NET, combined into a slider.
But, oh, there shouldn't be any white fringe!
I've tried to turn off RLE compression, but it's still here.
And the most nasty part of it is that other .TGA' display without it.
Any ideas for it?
CASE SOLVED (thanks to jitspoe)
Just fill transparent pixels with RGBA = {0,0,0,0}. Though it makes a dark border instead, but it's better than white one for these textures.
Homework: try making a transparent texture without any problem borders.