Trying to resolve this Paypal IPN and web return issue so I ran the response test from this link

What's happening is that payments made via Paypal are coming through, but not hitting back to the store. When I run a test purchase, after making payment via paypal I am returned to a BLANK PAGE (no visible error message) on my site. The web return url is set for shared SSL:

https://mysite.com/~clientname/shop/...heckout_proces

IPN CHECK returned:

Code:
IPNCHECK.PHP - Version 1.0

IPN TESTING - POSTING to PayPal via: ssl://www.paypal.com:443

IPN TESTING - Confirmation/Validation response: RESPONSE RECEIVED - Communications OKAY


Script finished.
Curl test returns:

Code:
7 couldn't connect to host

Array
(
    [url] => "http://www.zen-cart.com/testcurl.php"
    [http_code] => 0
    [header_size] => 0
    [request_size] => 0
    [filetime] => -1
    [ssl_verify_result] => 0
    [redirect_count] => 0
    [total_time] => 0
    [namelookup_time] => 0.001351
    [connect_time] => 0
    [pretransfer_time] => 0
    [size_upload] => 0
    [size_download] => 0
    [speed_download] => 0
    [speed_upload] => 0
    [download_content_length] => 0
    [upload_content_length] => 0
    [starttransfer_time] => 0
    [redirect_time] => 0
)

My hosting company enabled open_url on my php.ini which is still not resolving the problem. (and now they want to charge me for support at $60/hour -- which I would, frankly, rather pay to someone who KNOWS zen cart instead of these guys who don't)

Any clues?

THANKS!