how to stop particles shrink texture

I have a very basic texture being used on a material which itself is used on a particle system.
My problem is that the material or texture, i don’t know which, seems to be shrank or stretched in a specific direction when applied to the particle renderer, and I haven’t got a clue why.
I have attached 2 pictures, the first one is the normal texture, the second one is what it looks like when applied to a particle .

60441-signal-1-band-small-up.png
original

60442-signa-particle.png
applied to particle

Regards

Crouz

I seem to have figured it out by myself after I realised that the other textures I had in my scene were all square and this one wasn’t. So I made it square and this solved the problem.

Regards
Crouz