Scanning 120mm film with CanoScan 9000f help

Hello!
I just developed my first 120mm film and im trying to scan it with the 9000f using IJ Scan Utility. Under advanced mode, I cant seem to select the film size. Its only stuck at 35mm. How do I change this setting? or is there a better program to do this with?

It probably won't let you select the size until you have previewed the scan, at which time it will have attempted to populate that part of the information.
By the way, 120 film isn't 120mm, it is simply 120. Just as 127 is 127, 828 is 828, 616 is 616 ....
I use the Canon software (Scangear) that came with my 9000F, and after a fair amount of getting used to it, am fairly happy with it.
When it doesn't behave, I use Vuescan Pro.
EDIT: I looked up your software, and I'm thinking that it isn't designed for film, just documents.
Further EDIT: I think your screenshot is actually from Scangear.

What is "IJ Scan Utility"?
Have you tried DEFAULT at the Favorites box? Some software locks what you used the last time at User Defined.