hi Matt,
The clicking we had was the same electronic click you hear when the computer shuts down and about the same volume too as that. It always occured on startup and would sound intermittently for a good 10 minutes. However the clicking has gone now the connections have been pushed down. I have full backup of that drive stored on DVD. The only mystery now is in event viewer, on system, an error is still occuring every hour or so, on disk, no category, user N/A, only an error no. Is this my master hard drive or slave? I don't know. Thanks again for your help.
Regards tech_no