Paypal Standard

Hi, Is anyone having problems with paypal. I have set up paypal as the payment method and on the sandbox test environment, created test accounts. When the customer is at the checkout stage and checking out without a login, they are brought to to the paypal site and proccedd to enter their details. The order goes through on sandbox but when i go back into cs-cart, the order is failed.looking at the logs, this is the error message i get

Requests (http/https request) URL: [url][/url]

Request: ‘mc_gross=100.00&invoice=1019&protection_eligibility=Ineligible&address_status=unconfirmed&item_number1=&payer_id=48PLCVMM2L5K8&tax=0.00&address_street=test&payment_date=07%3A37%3A48%20Jun%2029%2C%202010%20PDT&payment_status=Completed&charset=windows-1252&address_zip=&mc_shipping=0.00&mc_handling=0.00&first_name=bridie&mc_fee=3.75&address_country_code=IE&address_name=bridie%20sammon&notify_version=3.0&custom=1019&payer_status=unverified&’

Response: HTTPS: libcurl error(7): couldn’t connect to host

PHp curl is enabled

cURL support enabled

cURL Information libcurl/7.15.1 OpenSSL/0.9.8a zlib/1.2.3 libidn/0.6.0

I would appreciate any help on this???

The error 7 means that the TCP connect fails to the given host/port.

I think, in the sandbox you have to configure a callback URL. Is that right?