I recently started using planned (quick and full) scanning and noticed a GUI bug in Vista.
When a planned scanning starts, a pop-up appears in the bottom right corner of the desktop. During the scanning this pop-up is normal. But when the scan finishes, the pop-up changes its appearance: it looks like as if it is cut on the right edge - there is no cross button, nor pin button. To close the pop-up I have to click "Show the results".