My Visual Studio 2010 IDE keeps opening when closed, why?

I'm having problems with the IDE since it keeps opening when I tried to closed it. Do y开发者_运维百科ou have the same problem and solution for that?

Edit I recently install hotfixes:

• [crashes on shutdown] VS10-KB2275326-x86
• [insufficient memory bug when copy-paste] VS10-KB2251084-x86
• [search box increased size bug] VS10-KB2268081-x86
• [unnescessarily scrolling in context menus] VS10-KB2345133-x86

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Try to use this hotfix KB2275326 – The Visual Studio 2010 development environment crashes on shutdown

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There's a checkbox in visual studio 2010 that asks if it should restart automatically when it crashes. So if its crashing then this is the expected behavior but if its opening after you click the exit button i have no idea about its cause.