Okay, so now I have a small problem, to make the blocks I used a simple polygon cube and did a bevel on it to get the rounded/erroded edges and then I just extruded in to get the indent where the numbers and letters are.

Now I want to add some materials on them to check how it looks, but when I try to use different materials on different faces it gets weird. soo to fix that problem I deleted the faces i wanted to have in colors and made a new cube and fitted it in nicely with the old beveled ones great, now I should be able to use two different materials on the "same" ombject.... WRONG! instead i get the same problem on my old beveled object (the one where I deleted some faces).

Anyone know what's wrong and how I can fix it?