Attached Link: http://www.softwarepatch.com/windows/index.html

Hmmm.... you probably need a more powerful computer than that to be able to run D|S :) Seriously though, that is a pretty decent rig... Well, I suppose you could play around with the settings in the render options and see if that does anything. Try rendering just one figure or prop and see if that works (although that system should be able to handle anything you throw at it without problems).

Is your system updated? Win XP patches and service releases (SP2 recently came out, but I hear it's buggy). Also graphics drivers and so on. Other than that I don't know, send a bug report, wait for the next version.

The link is to a page that has the most important Windows patches and updates.