Yea i did what you said and it looks the same as the little preview icon in finder.. I dont know what my brother did and he's already out of town on spring break so he can't explain to me
OK, right-click on the Dashboard app in Finder and select "Get Info". Then click on the icon in the upper left corner of the Get Info window and press your Delete key. Then close the Get Info window and see if it returns to normal.