I do not have any experience of using Miami with AfA-OS, however, I recall reading in the FAQ somewhere that there may be some incompatibilities.
I also seem to recall that the 'splash' screens produced by MUI programmes, such as iBrowse etc. will appear as an empty box, yet the GUI itself should function correctly.
My final suggestion would be to disable the AfA-OS libraries one by one (move them into a separate folder) in order to isolate where the problem occurs.
Sorry I cannot be of more assistance.
Good luck,
James
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