Good afternoon list; Marv here.  I am having a minor issue, also.  When using the portable copy of nvda on a usb stick, when going to an addon link in an e mail message, I get a message that says the address is invalid.  The only way I can get it to work is to copy the link to the clipboard and then paste it in.  On the installed copy things work all right.  This happens on a couple other links, also.  If anyone has a resolution, it would be appreciated.