Fujilfim has released v2.18 of the firmware for the FinePix S3 Pro. The download pages notes a single change in the firmware since v2.16:
1) Updates for the setting of the sharpness for JPEG images on the PC control mode.
The user-installable firmware is a free download from Fujifilm's web site.
Thanks to David Masterton for bringing this update to our attention.