Here is a list of known issues with the current version of nBill.  Please check this  list before posting a bug report.  Please also check that you have the latest version - your bug may have been fixed already!

Issues Found in version 2.0.9:

• If you have 'pending until paid' switched off, you might get an error email saying "Gateway transaction 'xyz' not found" when payment is made. A fix is available in the forum: http://www.nbill.co.uk/forum-smf/index.php/topic,1720.msg6909.html#msg6909
• When you mark an invoice as paid, the wrong currency might be selected by default and/or an error may occur in Internet Explorer (but not firefox) preventing the invoice data from being loaded. A fix is available in the forum: http://www.nbill.co.uk/forum-smf/index.php/topic,1719.0.html
  

Issues Found in version 1.2_10:

• One user has reported corrupted invoice display in this version - if you experience this problem (it only affects certain server configurations), edit the /administrator/components/com_netinvoice/admin.html/invoices.html.php file using a text editor (such as notepad - NOT a word processor), and on line 2072, check whether it says:
  
  header("Content-Encoding: "); //No gzip, thanks.
  
  ...if so, try changing it to:
  
  header("Content-Encoding: text/html"); //No gzip, thanks.
   
• If you have trouble restoring a backup using the nBill backup/restore feature, please see this forum post: http://www.nbill.co.uk/forum-smf/index.php/topic,1450.msg5786.html#msg5786
  
  
• If you have a problem with existing clients placing an order which 'could not be saved', try replacing your /components/com_netinvoice/transaction.processing.php file with the one in this zip file (unzip first): http://www.nbill.co.uk/dmdocuments/transaction.processing.zip.