A customer orders on my site, go through the shopping cart OK but when it comes time to pay via PayPal it hangs and never connects to PayPal. I have done some research and need to check the configs in the Commerce setup screen, however when I try to access this all I get is a blank screen, I am running IE9 but it also happens when using Chrome. The other options in the SETUP work fine. I am using shopsite10.
Any help on either problem would be greatly appreciated. Daymon