Recently I've noticed that when I double click text it won't highlight. I can tap to highlight one word, one click to highlight one word, but when I double click or triple click (or tap) it won't do anything. I've already been in the trackpad section to see if perhaps one of my kids messed around, but all looks good. In addition, I try to double click my little harddrive icon thingy on my desktop and it won't open. ARGH! Thoughts?