I have an apple iBook G4. I walked away from my computer for a second, and I came back and my cat was sitting on the keyboard, and she pressed some buttons to make the bottom icon bar to dissapeer(the menu at the bottom of the screen with icons like dashboard, mail, safari, etc.) But when I put the cursor at the bottom of the screen where the icon bar usually is, it appears, but when the cursor moves away from that area, it's doesn't appear. How do I get it to come back like it was before? Thanks in advance!