I just went out today and purchased HL2 Episode 1 (a little late I know but money doesn't grow on trees these days)  When I went to install it I had to put in the product key which I found on the provided paper slip inside the case.  I put it in several times double checking and making sure that I wasn't typing a character wrong and that maybe what I thought was a 1 was an L blah blah blah but it wouldn't work!  Is it possible that the product key is defective?  Help me out.  I could go just return it and exchange it for a different game but I might aswell ask before I do.  I want to have the game up and ready for a party tomorrow afternoon.
				
			 
					
				 
						 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		