If your Sequence Editor won't open then you may have an earlier version of the S2 software. It is recommended to upgrade to the latest version.

 

Click here to download the update:

 

Note: This version requires activation/registration over the internet. If you purchased the software from WowLights you can get your registration information by logging into your My Account page (click link in top right corner of website) and click the link under software licenses. 

 

If you purchased your software from Light-O-Rama you can get your registration information here: