ok here goes (please pay attention you at the back) :-D :-D :-D
1) there is no MMU or NO-MMU versions of the pci.library
a) its all controlled by the Mediator/MMU env-var
2) if you have a 4000-type version it's always in NO-MMU mode since the 4000 versions already have access to the total PCI address-range (address-range her used loosely)
