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			There have been several people who have reported success running calibre 5 with Windows 7.  The problem is that it is a crap shoot in that the initial install might work but a calibre update with a QT update may break the install.  Check the issues with QT and even relatively recent video cards/drivers for one reason.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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