Fusion 8.2 build 2 Render not saving a file

When I render a comp Fusion saying it is rendered but when I look for the file it's nowhere to be found.
I have set up a saver node and entered the file type and name etc. then clicked render.
Any help would be apreciated
Alex
I have set up a saver node and entered the file type and name etc. then clicked render.
Any help would be apreciated
Alex