I run a backup that restarts my Mac once every 24 hours. Last night when the Mac restarted I noticed a screen prompt stating that Sophos AV for Mac wasn't running. I opened Sophos AV preferences, entered my authentication password, and clicked the Start Scanning button. The button grays out with the word "Starting..." on it, but on-access scanning never starts.
Eventually the padlock in the lower left corner of the Preferences window locks itself to prevent further changes, but the on-access scanning button remains grayed out, showing the word "Starting...". If I quit Sophos AV, re-launch the app, and then open preferences again, the on-access scanner is back to "off", and the Start Scanning button is active again. Clicking it just repeats the previous action, wherein the button goes gray and says "Starting..." endlessly.
I am running Sophos AV for Mac v9.2.2 on a Mac Pro Quad-Core 2.8 GHz (Mid-2010) with OS X 10.8.5.
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