Yes, having compatibility problems with Toast Updates and Mountain Lion. Have sent several emails to Roxio Tech support and they recommended I uninstalled the old version then download a new update installer 11.04.
Did this, but when I try to run the .DMG I get the message "can't be opened because it is an unidentified developer".
I have checked to see if my Security Preferences are causing this, but no luck.
Any ideas from anybody? I need to burn 400 DVD like right now!