Hi again,
Just to add that I'm now trying out Widescreen MaGui 3.4 (Standalone Version), have the widescreen d3d9.dll and ini working properly and the Gui is working really well...
... but I still have that odd dark strip along the top and down the right side of the recognition manual.
I've tried to compare the differences between OLC GUI 1.2.1 (where the manual is fine) and 1.2.7 (where the manual has the problem), as it seems all the GUI I am trying are built upon OLC, but it has a different structure so I can't easily tell what has been done differently between the two.