[JKT]

I don't claim to understand the memory figures either, but I believe that it is only the Real Memory figure that counts toward the amount of RAM you use. Even so 1.8GB+1.3GB still doesn't get close to being 4.5GB ;)

If you are never using all your RAM, then you will not get any paging out to the hard drive and therefore you won't get very many virtual memory swap files. I regularly use all my RAM (e.g. if I run OmniWeb 5.1.x for any length of time, Dashboard, and NeoOffice which are all RAM hungry I often get quite a lot of paging over time) which is why I often get at least 1GB worth of swap files. I need more RAM basically, but those 1GB chips are expensive.