Our desktop icons and start bar disappear overnight on our desktop running WindowXP (they will appear when we restart). Now having the same problem with my daughters laptop (Vista) except they will not reappear with restart. I have a feeling we may have picked up something from Limewire - she has it intalled on both computers. Running McAfee av & firewall & MSM Spysweeper. Also tried Uniblue Speedupmypc (actually think that was a waste on money). Please help!