I have a licensed copy of PFire2 and love it. Question is, can it run on multimonitor setups? Is there a patch or update or am I missing something to make it work? 8)

If you don't see the option, then you may have an old version of Particle Fire 2. Try downloading the latest version of Particle Fire 2. Under where it says Screen Mode, it should display [ ] Allow multi-monitor. Check this box and then hit OK for both monitors. Since you previously registered your copy, you may have to enter the serial number on the new version to avoid it reminding you to register.