This has been bizarrely frustrating.
I went through the original DOC file line by line. They don't explicitly say, but I copied QMouse and its config file to my C directory.
I then added this to my startup sequence, based on the DOC's suggestions (I lobbed off the call to the config file for now, just trying to get the dang thing to load).
For some reason, Workbench seems to simply ignore these statements. When I was launching the program (incorrectly) I could instantly see the mouse zoom and become more responsive, thus I knew it was working. Here - no dice.
It's worth noting to those reading this thread that QMouse is WAY more than just a mouse accelerator. It offers *tons* of additional functionality.
I'm not sure why I can't get it to run from the SS. I wonder if maybe WShell is somehow bumping heads with it.
I'm going to move all of this from SS to user-startup and see if that makes a difference, since a lot of the WShell stuff gets loaded over there. If that doesn't work - I'm probably going to give up for now. But man - sure wish I could figure it out. Sounds very cool. And I do love the accelerator.
If still no joy, I'll probably spelunker through the FF disks and find a nice accelerator on its own.