I am having an issue with the resolution for export. I seem to be able to export the Fire effects perfectly in a 320x240 video (same size as the video viewer window)... but when I try and export as 640x480.. the flame effects are totally incorrect! Again, the 320x240 video exports the flames all perfectly.. but when I try to export as a 640x480 video the flame effects look as if their parameters are totally different. They are there, but totally messed up.. for example extremely short flames, or the explosion of flames just turns into.. something that doesnt look like an explosion

PLEEEEEEEEEEEEEEEASE help as Panopticum has totally ignored my emails and phone calls. I can't say I would ever recommend products from them!
Thanks in advance!