I'm really sorry if this have been mentioned before, but I'm not sure. I'm also not sure if this is actaully ment to be there, for some reason I don't understand.
Well, the bug is that sometimes, for some reason, even though the primary color is set to, let's say, blue, and the secondary is white, if I left-click to draw, it should draw with the primary color, blue, because left-click is the primary color, and right click is the secondary. But left clicking will draw white, and right would draw blue. For me, I'm not noticing a pattern in when or why this happens, it just does.
And ideas? I think it's some feature I'm just not understanding.
Edit: I'm useing version 2.70.