Price doubling at checkout

[Guest]

Hi peoples, has anybody encountered this problem? When ever I go to the checkout with a product the price is doubling??!! All items are doing this except two...? Very odd. The two items that are not doubling in price at checkout are also not able to be found in the Product Attributes section of the back end - so I can't even eliminate the problem by analysing the differences.

:blink:

Please somebody help me, this is very frustrating and I have no idea where to begin trouble shooting this?

www.monstaprint.com.au