I have installed the KAV 6.0.2.678 on my workstation and have problems with my GroupWise Mailbox.
Every now and then i receive a "C045" error, GroupWise hangs and have to be closed by ending the process.
"C045" is a general connection error.

When i deactivate the SMTP check (Network Settings - Port Settings, General SMTP), the error does not occur.
Disabling all of the protection, does not work.
I had a similar problem with my News Reader (port 119).

Is there a known issue with GroupWise?