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			#5  
			
			
			
			
			
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			I stand corrected.   Thanks - no need for the rest of the world to know I'm still wet behind the ears!  I think I know who's going down first on Sunday... The funny thing is - I read the difference the other day, but they didn't explicitly point out why it mattered, so it didn't stick in my head. MathBabe | 
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