New ACA500+ user - Having issues installing Workbench

Hi all,

I have tried to use the ACA500plus automatic installer menu to install workbench onto a freshly formatted FAT32 card.

It goes through process of mounting the 7 virtual disk images and then loads into Workbench but I get the following message:
"Not a DOS disk in device ACAVD6"


If I try and use the F7 non auto method I see the following disks on the workbench screen.

Ram Disk
Install 3.1
ACAVD1:NDOS
ACAVD2:NDOS
ACAVD3:NDOS
ACAVD4:NDOS
ACAVD5:????

I have tried flashing all the firmware's on the ACA support page and this doesn't seem to change anything.

My a500+ has a gotek which allows me to mount the workbench ADFs and install successfully but I would rather use the ACA autoinstall to get everything fully supported. Also I'm worried a might have faulty card.

Thanks in advance!
Mark