first came up with this when returning from paypal

2006 MySQL server has gone away
in:
[SELECT count(*) as count FROM subscribers WHERE email_address = '[email protected]']

!!!! = ?? I didnt get to confirmation page before pushing refresh. Btw should I enter the paypal return address to zzz.com/store/checkout_success? or store/index.php?main_page=checkout_process?

DEBUG EMAILS (email etc changed):

IPN INFO - POST VARS to be sent back for validation:
To: www.paypal.com:80
POST /cgi-bin/webscr HTTP/1.1
Host: www.paypal.com
Content-type: application/x-www-form-urlencoded
Content-length: 101
Connection: close

Array
(
######[cmd] => _notify-sync
######[tx] => 7DH37035JU2103918
######[at] => 9e6t3**********vm9S0
)

IPN INFO - POST VARS to be sent back for validation:
To: www.paypal.com:80
POST /cgi-bin/webscr HTTP/1.1
Host: www.paypal.com
Content-type: application/x-www-form-urlencoded
Content-length: 101
Connection: close

Array
(
######[cmd] => _notify-sync
######[tx] => 7DH37035JU2103918
######[at] => 9e6t3**********vm9S0
)

IPN INFO - Confirmation/Validation response
SUCCESS

PDT Returned Data Array
(
######[payment_date] => 09:43:58 Sep 04, 2008 PDT
######[txn_type] => web_accept
######[last_name] => ZZZ
######[receipt_id] => ZZZ
######[residence_country] => FI
######[item_name] => ZZZ Purchase
######[payment_gross] =>
######[mc_currency] => EUR
######[business] => [email protected]
######[payment_type] => instant
######[protection_eligibility] => None
######[payer_status] => unverified
######[tax] => 0.00
######[payer_email] => [email protected]
######[txn_id] => 7DH37035JU2103918
######[quantity] => 1
######[receiver_email] => [email protected]
######[first_name] => XXX
######[payer_id] => WYUXEH8VBQKR6
######[receiver_id] => 987AEXXXX
######[item_number] => Store Receipt
######[payment_status] => Completed
######[payment_fee] =>
######[mc_fee] => 0.38
######[shipping] => 0.00
######[mc_gross] => 1.00
######[custom] => zenid=bb2a0838921a1562f5d66f0caa760ad7
######[charset] => windows-1252
)

IPN INFO :: Transaction email details.
From IPN = [email protected]
From CONFIG = [email protected]

IPN WARNING :: Currency/Amount Mismatch. ##Details:
PayPal email address = [email protected]
| mc_currency = EUR
| submitted_currency = EUR
| order_currency =
| mc_gross = 1.00
| converted_amount = 0.00
| order_amount =