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Yes AC, I have told her to talk to the tech guy at school.
The setup is that the school supplies the laptops with XP, Office, Sophos and some school specific software installed. We pay for them over a two year period with the school providing first line support, and if we want to keep it at the end of that period we pay a small sum for the residual value.
Obviously the school has it's own firewall in place, along with blocking software, which is fine as long as the kids are at school. But the idea is to let them take the laptops home with them so that they can access stuff on the school site when away from school.
The lass tells me that the school does not seem to be bothered what the kids install on the machines, but the notion that they are set up with no software firewall seems absurd to me, given that the kids are expected to use them outside of school.
Oh well, if the school support bod says the Comodo has to come off, I'll take it off ... and book an appointment to see him myself.