When I try to connect, I get a "could not retrieve current enable surrogate processing or permissive unicode values from server" or "server not found" error.
Make sure the database you are trying to connect to is suppported. You can find this information in the release notes.
Here are the databases supported in v1.3.
Sybase ASE 12.5, 15.0.2, 15.0.3, 15.5, 15.7
Sybase IQ 15.1, 15.2, 15.3, 15.4
Sybase SQL Anywhere 10, 11, 12