Hi Pat,
Thanks. Unfortunately that didn’t seem to help.
The strange thing is that the behaviour is inconsistent. For example, this morning, having left the computer on overnight, without shutting down, the problem isn’t occurring yet. But from experience I know that it’ll come back and I won’t be able to do anything about it when it does. Restarting the machine does not help.
It makes me wonder if it’s something to do with background processes, but I’ve no idea which ones they might be. We do have Norton on this machine.
Thanks,
John