Foolestroupe, have a trawl through John In Kansas' posts (or write him a friendly PM?) because he seems to really know his way around the innards of a puter and is very generous with helpful advice. He's written a lot of it already so perhaps you may find what you're looking for in one of the related threads. It's certainly a good point to raise - I haven't encountered that problem yet but inevitably will, I'm sure.