LaserSoft Imaging

I have been using silverfast for the past few years with my EPSON V750pro and recently upgraded my Mac OSX to Yosemite only to find out I needed an upgrade for Silverfast. I have downloaded the latest Silverfast version from your links, and allowed download through my security settings, but the program continues to "unexpectedly quit". I can no longer scan anything so I need your help. This is very frustrating.
Regards
Chris Round

Dear Chris,

Which version of SilverFast are you using?
OS X versions newer than OSX 10.7 require at least SilverFast 8.0.
Older SilverFast 6 versions can not be used anymore because Apple removed the necessary libraries.

Kind regards,
Arne Ketelhohn.