How to show attribute price instead of the $ increment?

Option name=size
Option values=8x10 and 11x14
Base price set under catagory/products=$12.99
Under Attributes controller>8x10 I removed the "+" and entered 12.99.
Fro 11x14 I removed the "+" and entered 16.00.
Now the "Starting at" price is $25.98 (The base price plus the 8x10 price) and the price in the shopping cart reads $12.99 if I choose 8x10 (correct) but it reads $29.98 if I choose the 11x14 (the 8x10 price plus the 11x14 price).

How can I set the attributes check boxes the show the 8x10 price at $12.99 and the 11x14 price at $16.99 and have them tally coeectly?

Set the Product Price to: 0.00

Mark the Product as Priced by Attribute ...

That works. Thanks.

Dang! I added another product and I did the same thing. I deleted the price in "catagory/products". I then went to "attribute controller" and chose the right product. Then I went below and entered the price for the attributes. Now I have no "starting at" price for this item but I have the right prices in attributes.

Woops! Never mind. I needed to go to "catagory/products" and check "priced by attributes".