TreasureChest View Cart popup html

Hello guys m new to TreasureChest, everything is working fine accept view cart modalbox html, when i click on view cart popup open and whole webpage displayed in it instead of cart html and paypal icon.

problem is in src tag of the page to be displayed in modalbox

http://sitename.org/cart.html& when i add question mark through firebug to http://sitename.org/cart.html?& than its work fine i am unable to find this html its added on run time when i click on view cart

please help me

Kind Regards
YM

Have you made sure the cart page is set up properly, with no paragraph tags around the treasurechest snippet call? You have to completely disable your richtext editor when you edit that page - you can’t just make the change in the HTML window of TinyMCE.