as highlighted in the picture, things stick to the desktop after i close/minimize them.
 
desktop/firefox does this nonstop.
 
i turned off yz's shadow thing thinking that was teh issue. it still does it but less frequently.  
 
also truetransparency made it do that a lot too. i turned it off and it helped some.  
 
any solutions?
 

your computer is most likely buisy, or you have alot of programs running, open task manager and close unneeded tasks as long as they arent system tasks

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Why are the icons (e.g. the Firefox icon) so big? That might be the cause of the problem..