Windows version of Max 5 may not be able to import Max 4 files with
font-specific text encodings properly (click
for more information on Unicode text converson).
The Max 4 Windows version cannot read these files either.
Max 5 uses the Windows SDI (Single Document Interface) model, where
each window has its own menu bar. Max 4 used the MDI (Multiple Document
Interface) model, where there is an overall frame around all the
application's windows, and the frame contains the menu bar. In the
SDI model, closing all windows will quit the application. In the MDI
model, you can close all the document windows but you must explicitly
choose Exit from the File menu to quit the entire application.