Has any one found a solution or cause to this issue?  I have also been having the same problem.  
	If the "SSL Enabled" checkbox in Admin/Site Settings is checked on the return url's come back using paypalobjects.com/ and are not able to get a confirmation.
	If the SSL is turned off we get the correct return urls and confirmations are fine
	This is fustrating, any help?
	Here is the url we get upon a sucessful payment when SSl is on.  If I manualy change paypalobjects.com to our domain and refresh then confirmation then gets trigered.
	 
	 
	Event Log:  (here is what we get in the log when it fails)
	Stacktrace: : at System.Threading.Thread.AbortInternal() at System.Threading.Thread.Abort(Object stateInfo) at System.Web.HttpResponse.End() at Smith.DNN.Modules.BuyNow.Confirm.RedirectPaypal() at Smith.DNN.Modules.BuyNow.Confirm.ProcessStatus(PaymentStatusInfo status) at Smith.DNN.Modules.BuyNow.Confirm.Submit() at Smith.DNN.Modules.BuyNow.Confirm.btnSubmit_Click(Object sender, EventArgs e)
	Server Name: IP-0A76530F