+1 to jimreynolds, perform the global settings reset and expression pedal calibration after successfully updating the flash memory.

  We have release a new version of Line 6 Monkey 1.51 to address problems updating POD HD devices flash memory with Line 6 Monkey 1.50. It can be downloaded from the links below:

  Windows Line 6 Monkey 1.51:

  http://line6.com/getrelease?rid=4618

  MAC Line 6 Monkey 1.51:

  http://line6.com/getrelease?rid=4619

  We haven’t heard back from you, so we're going to assume your question has been answered. If it has been answered, please consider awarding points to whoever was helpful and/or answered the question so they get the formal recognition.

  In the event your issue has not been resolved, we have generated a support ticket for you so we can continue to communicate. Should you need further assistance, please respond to the ticket. With us talking via the ticket, I will mark this thread answered.

  Q: What is a support ticket?

  A: A support ticket allows you to directly correspond with a Line 6 Support Representative. An email will be sent to you from Line 6 containing a link to the ticket when a Line 6 Support Representative responds to it. Please follow the link in the email to view your open ticket to work one on one with Line 6 Support. Also, in your account, click My Account, then click Support Tickets to view the support ticket. Here’s a shortcut:

   http://line6.com/account/tickets/view/.

  Please note: Sometimes support ticket notifications will be filtered to spam and junk folders. If you did not receive an email from us indicating that a ticket has been created, please make sure to check those folders in your email host, and also that your email account is receiving messages at all. You may also consider adding Line 6 to your safe senders list.