Currently Being ModeratedApr 24, 2013 7:33 PM (in response to squamish ed)
Not to disrupt your project, but if you can duplicate and isolate this project somewhere else and see if the problem still exist. You can the re-render or delete your render files (this could force you to re-render your project, so take note!). Therefore, see if you can duplicate the project and re-render it and see if this problem persists. Otherwise, if the fan is not very annoying, finish your project first, then indulge in the details.