With out doing any research, I would say an actuator is sticking... 
Just leave the top down and "hop in" each time   
		 
		
		
		
		
		
		
			
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				kabel 
 
Orlando - 99 BMW  M Coupe (autocross toy), '11 Mazdaspeed 3 (dog hauler), '99 10AE Miata (the new daily driver)
			 
		
		
		
		
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