[TYPO3-commerce] Price show as 0.00

[rocky ou]

Hey,

I followed the instruction from http://wiki.typo3.org/index.php/Commerce 
set up the shop. The problem is that although I inputed a price for the 
article I got price show as 0.00 at the frontend. Is this because I'm 
using TYPO3 4.4.0 and commerce 0.12.x? I tried with TYPO3 4.3.3, but the 
problem remains. Any idea?

Thanks!
Rocky