PRO Username: trillwave 
Do you have active membership?: No 
Your knowledge about PRO: Beginner   
What have you done before the problem was there? 
Downloaded the zip file, unzipped, tried to launch.   
What have you already tried to solve the problem? 
Redownload, unzip, try to launch   
Description and Message 
After downloading and extracting, I am unable to launch the client on a Macbook Pro. Simply says 'The application "PROMac94_1" can't be opened.'