Ultima, ADT and Mockingboard Problems

[greathierophant@gmail.com]

I have discovered the ADT Pro program and have used it to transfer
disk images from my PC to my Apple.  Although I have yet to send many
disks, (copying over audio cables is slow), the games I have sent work
mostly fine.  Ultima IV works perfectly with a (GSE Reactive)
Mockingboard, but Ultima III and V have problems.  In Ultima III, I
can get past the Mockingboard setup only by not selecting a
Mockingboard.  Selecting a Mockingboard, which I have installed, only
results in the drive making nasty noises and some random text
characters on the screen.  Ultima V starts up correctly, but will not
display the "Activate Music" in the main menu, as though I were
running it on a II+!

Here are my Apple II system specs:

Apple //e Enhanced Platinum

Slot 0 : Extended 64K RAM
Slot 1 : Empty
Slot 2 : Super Serial Card
Slot 3 : Mouse Card
Slot 4 : Mockingboard
Slot 5 : Empty
Slot 6 : 5.25 Controller Card
Slot 7 : Empty

I am using a Duodisk for 5.25 disk drives.  The Apple II passes all
diagnostic tests.  I have three theories why the Mockingboard routines
on these games fail:
1.  Duodisk incompatibility - I do not believe the Duodisk's
compatiblity issues were so severe.
2.  Bad images - They work just fine on AppleWin.
3.  Unwiped Disks - I had previously written other disk images before
writing the current disk images, but I did format the disks again
before writing the new images using ADT Pro's Apple II client.
4.  Disk encoding beyond ADT's abilities - And yet the games appear to
function normally in other ways.

Any ideas?