In a recent Inventor update, the "Zoom All" level for sheets was updated to make the sheet fill the entire graphics canvas, rather than leaving large margins like in past versions. This is great; however, I think they took it a bit too far. The sheet is now so close to the graphics border, that the top border of the sheet (and sometimes the bottom as well) gets "clipped", giving the appearance that the entirety of the sheet is not shown:
Current "Zoom All" level:
For some reason, though, the default zoom level after creating a new sheet is slightly different -- and I personally think this zoom level is much more appropriate:
Current "After New Sheet" zoom level:
I think the two zoom levels should be made consistent, and I think they should defer to the "After New Sheet" zoom level, as it doesn't feel as cramped as the zoom-all level, but still takes advantage of the entire graphics area, with only a couple pixels of margin at the top and bottom to ensure the entire sheet is visible.