It genuinely needs some, BTW, due to quirk in the memory management algorithms (details are very difficult to find, I'm afraid), but that doesn't mean it will be in use. Plus applications can explicitly allocate swap.

It might be time to do a re-install. 2K Server had a weird quirk in some installations where it's quiscient state took more and more memory until it was re-installed. Rebooting didn't help.

Wade.