It was recommended from the forum to run Craig's 'Tuneup.ncf' file. I
have downloaded it from his website. I just wanted to know if it would
cause my system any more problems or will it only benefit the system?

I have just applied the proxy.cfg. I am trying this now as I can always
copy my old proxy.cfg if it makes the system worse.

I am running NW6.5 SP2, BM3.8SP3. I have 5 x 5Gb cache volumes. It is
only a proxy server.

Thanks for any input.