Well, I thought I would be able to fix this pesky scale problem. I was able to move it over to the right so it was in basically the right place, but I could not get it to slide back when the others do and I couldn't see anything obviously wrong about any of the lines in that section compared to lines in the sections of the items which do slide back just fine.
So, since I didn't really see any practical use for the scale anyway, I got tired of screwing with it and just moved the scale completely off-screen so it doesn't show up at all - just made the following change to the menu_1024_768.ini file to do this:
[G25 I43]
Zone= 115 122 429 7 0 1 0x25060003 0 -1 0x25060004 0 0 1000 1000
Still bugs me that I can't get this to slide, but at least now I don't have to look at it 
Enjoy!