I have now done a clean install of v3.
I have about six python-based programs and none will run. The program starts and it can be seen momentarily in SysInternals Process explorer and then it shuts down.
All use tcl/tk.
More mysteriously still, the firewall itself fails to run when the desktop icon is clicked. Both engines are running and can be seen in Process Explorer, but when the icon is clicked it too starts to run (ie the little hourglass appears) but the a few seconds later dies and the firewall window fails to open. The icon for the firewall is not appearing in the system tray either. The program is starting with the -s switch on the command line.
Any ideas why this is happening?
xpsp2 - winpatrol - avast!AV