Dash application search unresponsive at startup

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http://askubuntu.com – I'm running Ubuntu 11.10. When I attempt to use the dash to search for an application immediately after log in, the search is unresponsive. I have to open and close the dash several times and attempt several application searches before it returns results for my search. This behaviour happens whether I open the dash with the mouse or the windows key. Although the application search is unresponsive, the file- and music-search functions work just fine. I've noticed that the application icon at the bottom of the dash window is missing until the application search becomes responsive, at which p (HowTos)