Hello newdeck,
Thanks for posting a link, you would be amazed with the number of folks who have an issue but, don't post a link so you can actually see what is going on.
I tested all 4 buttons and they all work, no problem there. Was the issue found by you or a customer? Suggest deleting your web browser's cookies, temp files and history, close your browser, reopen it and retry.
The one thing I noticed was that each time I tested a button, another window would open. You can control that behaviour by making a small change to your item button code.
See the tip below:
** Problem - New Window opens when using shopping cart.
Change target="paypal" to target="_self". This will keep the shopping cart page on the same page. See example below:
<form target="_self" action="https://www.paypal.com/cgi-bin/webscr method="post">
The HTML command target="_self" puts the new document in the same window as the current document. Some web browsers like FireFox, Chrome and older versions of IE will open a new or second window to display a new document. In order to prevent having multiple windows open while doing a task, it's recommended to use target="_self".
Also do the same for your View Cart code.
