I'm using CS5 and I'm having a problem with Selection Tool. Whenever I use Selection Tool and click on a square, the highlighted (blue) borders are a bit bigger than the actual square on the right side and the bottom. This causes a problem when I try to align 2 squares because they are aligned according to the borders and not the actual squares. I don't know what I did to cause this problem. I have been using Illustrator for a few years (self-taught) and have never come across this problem until today.