We’ve come across one small problem with Mountain Lion, where some customers are seeing an error when trying to install after downloading Quantrix . The error sometimes says that the software is damaged.
This is due to a setting in Mountain Lion where users can restrict the software that can be installed on their Mac. Changing the security settings to allow non Apple software resolves the problem.
To do this, open System Preferences and choose the “Security and Privacy” panel. Under the “General” tab there is a setting which specifies the permitted installation sources. Changing the “Allow applications downloaded from:” setting to “Anywhere” enables Quantrix to install.
The following link gives some more information on this topic: