Boot from WB3.0 floppy.
Go to Devs/Monitors on your boot partition on the harddrive (DH0: or HD0:) and remove the driver for the PIV, copy it to storage/monitors and delete it from devs. Make sure you have the PAL or NTSC Driver in devs.
Remove WB3.0 floppy. Reboot the machine and when it boots it will default to either NTSC or PAL, which will then let you adjust the settings using Prefs/ScreenMode
Weed