shopping cart, and paypal

Ok this might seem weird, but i had another look, if i paste the code for the add to cart button twice on the products page, [wp_cart:PRODUCT-NAME:price:PRODUCT-PRICE:end] the whole thin works perfectly!! you are taken to the shopping cart page, and from there to the paypal check out page. But if i then delete one of the add to cart buttons i get the same paypal error page “Some required information is missing or incomplete. Please correct your entries and try again.”

?????

problem still there, i have been at this for a few hours, and cannot seem to fix it! any help??

Any able to give me some feed back about this problem??

Hello everyone, i have downloaded and installed this wp shopping cart plugin. I have also gone and set up my paypal end of things. When i choose add to cart on my site, instead of being directed to my shopping cart page, it brings up the following error on a paypal window.
“Some required information is missing or incomplete. Please correct your entries and try again.”

I have been looking at this for a few days now, and i have tweeked a few things, but it still comes up! Am i missing something?

Any help greatly appreciated!

Please post a link to the page where you have the add to cart buttons.