Hmmm. The GVP boot floppies should load the driver from disk (SYS:Expansion), but you might need to disable the autoboot jumper for it to work. i.e., I'm not sure if the (bad?) version in ROM gets replaced by the disk-based version, so try disabling the ROM version entirely.
Also try issuing the command 'version gvpat.device' in a shell. Does it fail or give you a number?
The "good news" is that Ralph Babel, author of the GVP drivers, has made the latest versions of them available on
his website. So if the ROMs have somehow gone bad you could burn new ones.
