Since I can't duplicate this AND since you have said before that IF you Minimize the Family Tree Maker Program then clicking on the ICON on the Windows Tool Bar that the program Opens back to where you left it.
It THIS specific case, you are saying that something different happens.
"It is this part that goes crazy and "greys out" if I Minimize the page and then return it to screen. All of the report is "greyed out" except the small LH upper section"
There is only One Minimize option, on that screen, and that is in the upper Right corner, 2nd ICON to the Left of the Red "X". Right.
My screen (the Family Tree Maker screen, and the only one open in the Publish Workspace, Detail tab) minimizes and reopens to the exact place and size as I left it when I minimized it.
What specific Chart or Report do you have selected? I was using the Relationship Report, Outline Descendant Report.