Problem with checkout and total cost

Hi,

When I go to the checkout the total cost of the order is much larger then it should be (see picture). I suppose there are two zeros to much before the comma. Do anyone else have the same problem? What can I do? The shopping cart shows the right numbers.

I have installed the commerce price table module. Could that be the problem? But the problem shows only on the products where I don't use the price table.