strange behaviour about dash icon positions

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http://askubuntu.com – It's a hardly any trouble but I still want to ask in case anyone knows. I like to keep my dash clean with just two or three most common applications pinned. The strange behaviour is that new applications that are not pinned in dash always open up at the position just above bottom pinned one. A picture is worth a thousand words: An example with 2 application pinned An example with 3 application pinned ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +------+ +------+ +------+ +------+ | dash | | dash | (HowTos)