Hi A4000_Mad and Michael D,
Michael,
yes thanks for yr comments, in particular about reading the Doc's in full. Since I wasn't getting any where with any thing else I decided to try out some of the Oktapussy "Beta" files. Which resulted in me using the "AT" file in my Expansion drawer to replace the existing "AT" file. I also edited my CF0 devs file to reference driver, softSCSI_ATE9.device.
I had my CDROM as secondary IDE and my CF as master IDE on the Tandem I/F.
I rebooted and using FindDevice I now have two exec. devices for my CF device :-
SoftSCSI_ATE9.device and
2nd.SCSI.device (*)
(*) (note this appears to be the way Oktapussy designates multiple devices)
Anyway running HDToolbox recognized the 2nd.scsi.device and enabled me to format the CF card!!!!
Strangely enough I didn't have to run giggledisk to create a exec. device driver for CF0, I double checked my Devs DOS drivers and CF0 is still referencing softSCSI_ATE9.device??
I will try "doing the right thing" another day, at the moment every thing appears to be working OK.
Anyway SUCCESS AFTER A LONG ........ TIME
many thanks for yr help and encouragement,
BFN, Ian