00000005 - Verification of update files failed. The files did not match the manifest.

Hi

I've started recieving the following message when trying to deploy Sophos to a new computer or a computer which I have had to uninstall Sophos from to reinstall: 00000005 - Verification of update files failed. The files did not match the manifest.

I've tried following the suggested steps in article 119137 but it still fails to install.

Existing clients appear to be updating correctly, it only seems to be new clients.

I have got an old Standalone installation which I created about a year ago and running that seems to install correct and update, however it doesn't appear in the console and I can't view the Network Communications Report on the client (but that might be my standalone installer)

Does anyone have any suggestions I can try to see if I can resolve this?

Thanks