browser displays

[00lewis]

hi there i have noticed that when i view my site on a mac browser the shipping charges are not added to the total cart price also it does not appear in the checkout/ view cart grids. However on a pc it does appear how it should, Obviously if a buyer raises an order from a mac i still need to charge them for postage,

Has anybody else had this problem, if so how should i go about correcting this problem.

P.s. If its happening to me would it not be happening to everybody?
below is a dirct link to a product, could anyone using pc/mac give me some feedback, are you being charged for postage?

http://d256639.micro59.micromarteurope.co.uk/acatalog/12_Hook_Clip_Strip_610mm.html

[00lewis]

Hi there all of a sudden one is feeling a little stupid, i have just carried out an order all the way to the end on a mac, and now that i have entered my address the cookies now know where the order will be shipped to and knows how much i will be charging,and now places the relevant shipping cost automatically in the cart grids next time i return to the shop.....