If when running Sage Evolution you experience an Access Violation similar to this, then you need to do the following:
If on a normal Workstation, close all applications.
Sign out of Windows
Log back in
If running on a Terminal Server, close all applications.
Sign out of the server.
DO NOT DISCONNECT!!
Sign out and log back into the server.
The access violation error should then disappear.
If you don't follow the above steps, the message will keep appearing at different points and you will get more frustrated.
It is best to be on the latest version being 7.20.80 as this has improvements in this area so should have far less occurrences. You can find this by doing HELP...ABOUT.