Possible to many softwares run in same time and suck all your memory have you updated the game to version1.2 ?
Starforces driver updates are here:
http://www.star-force.com/support/sfdrvup.zip
but i don't know if the link work is a old link.
Starfock is not the soft they suck all your ressources because after load all things, hide ide2, and launched the game, starfock have no more activities, if you use demon tool's change for alcohol and make a test. Ihave encounter some probs with demon because they have make a unproper installation, reinstall it and retest, Attention, if you would uninstall demon tools, & if you have unblacklisted with starfock, restore the blacklist before uninstall otherwise this will give a big sh*t and you can not reinstall it on bus d347 so use manual installation with bus d348. Or add more memory chips to the computer and make some test's. Sorry but a can't no more for you, if i don't have a description from hardware that you use. bye.