Disregard previous post

I'm having trouble getting post back information from Paypal to confirm to my CATALook store that the purchase was successful. I'm currently using the Paypal Sandbox to attempt to get the store working properly. The store seems to be working okay but once I make the purchase and Paypal tells me that the payment has been made, the store is not updated to indicate the items were paid for. The purchases continue to read "unpaid" while the Paypal Sandbox shows the store account has been credited with the purchase amount.

In the Log Viewer, I get a Page Fault Error:

AssemblyVersion: 03.03.04
PortalID: 0
PortalName: MYSITE
: -1
UserName:
ActiveTabID: 36
ActiveTabName: Home
RawURL: /portal/desktopmodules/CATALooKStore/PayPalIPN2.aspx
AbsoluteURL: /portal/desktopmodules/CATALooKStore/PayPalIPN2.aspx
AbsoluteURLReferrer:
UserAgent:
DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke.SqlDataProvider
ExceptionGUID: 79c3b0e3-73ff-47a1-9adc-47db37d6e7a1
InnerException: The underlying connection was closed: Unable to connect to the remote server.
FileName:
FileLineNumber: 0
FileColumnNumber: 0
Method: System.Net.HttpWebRequest.CheckFinalStatus
StackTrace:
Message: DotNetNuke.Services.Exceptions.PageLoadException: The underlying connection was closed: Unable to connect to the remote server. ---> System.Net.WebException: The underlying connection was closed: Unable to connect to the remote server. at System.Net.HttpWebRequest.CheckFinalStatus() at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult) at System.Net.HttpWebRequest.GetRequestStream() at CATALooK.StorePayPalIPN2.Page_Load(Object sender, EventArgs e) at System.Web.UI.Control.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Page.ProcessRequestMain() --- End of inner exception stack trace ---
Source:
Server Name: WINHOST63

Any Ideas?

Thanks,

Bruce