Minimum PC to run Preform 1.5?

My older PCs (Win XP) no longer run Preform (after version 1.3). I’m open to upgrading  my shop computer to something with an up-to-date graphics card. Any light that can be shed on this would be appreciated. If users (or Formlabs ) have experience running Preform v1.5 on  PCs that don’t cost a whole pile of money, I’d love to hear about it. Anyone running a Core II Duo and Win 7? This won’t be my workstation, just a terminal for processing Preform files.

Thanks,

Andy Hudson