Getting rid of white boxes around images

Hi guys this is my first post <img src="smileys/smiley1.gif" border="0" align="middle" /> I am loving all the features of construct 2, but am having a problem when putting objects on the layout like characters and platforms. Every image I drag and drop from my Pictures folder that I created using other programs like MS Paint and GIMP have a white box around them. So my sprites are more or less like cubes when tested and the white overlaps other objects. Is there any way I can either make the white backgrounds on my images transparent or cut the character out of the box?

I would really like to find a solution to this. Thanks for your help in advance! <img src="smileys/smiley4.gif" border="0" align="middle" />

That's an easy one.

Access the sprite editor and look for "Alpha" inside the palette section.

The default for alpha transparency is 255. Set that one to 0, select the filling tool and get cracking on those white boxes.

Yay! It worked <img src="smileys/smiley4.gif" border="0" align="middle" /> Thanks so much Blinx!!!

I am having a little trouble finding the "alpha" could I get a little more clarification? Thank you in advance!

<img src="http://i.imgur.com/outRdrR.png" border="0" />

Awesome thank you!

great help thank you