Mine sometimes has the super compressed table, after adding a waypoint or clicking on the map it goes out to the more normal table. The only column I can widen is the Waypoint number column.
I am experiencing the same behavior. You can see the best I get in the first post. It still does not let me easily verify altitude which is what I am most concerned about.
Have you tried clicking the map. When I do, I can see the Alt column plainly. If I change from a two place alt (say 20) to a three place (like 100) the column widens to show the three digits.