Price level bug?

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I don't know if anyone experienced this: 

I setup a price code for our product.  with price level 1 being the heaviest discount, level 2 being the lesser discount and so forth.  i applied the price code to our product lines.   however i notice in the price code on the my item maintenance page it shows the proper price level.  but when i click on the pricing on the upper left, once a new item pricing maintenance window pop up.  under price level.  i enter "1" again, it shows no discount whatsoever, but when i enter 2, 3, 4, and other price levels i setup, they will all show the right discount percentage.  and also when in the SO.  my customer with price level 1, doesn't get the proper discount.  

is this a bug?

can anyone help?  

thank you

Bliss