yes I had this problem and it was disk access. Does your drive (the one
with the swap file)spin down and have to restart? Is it an old drive?
I had that problem whenever I did something to my hardware (eg changed drivers,
or something that required a rebbot) but it went away whenever I added new
hardware ( or changed drivers ...) and rebooted...almost toggled it on and off.
That was on my Abit BH6/Celeraon 450 system.
BB