Summary Data Report, Rescan 3.13

When using the "Report" option, the summary data report seems to be squirrley to me (Meaning I probably don't know how the program is supposed to work). How many days data, max, can you present in your reports? It appears that 60 days or two months is the maximum number of days I can get. The period I get varies and doesn't appear consistent depending on what day or days I select in the browser to the left.

FWIW, my data starts 12/28/10, and includes a good number of "detailed" data items. I had to get a new machine in Dec 2010. When I use the "Review" option in Rescan, summary data is available from 12/28/10 and I can jump to any day by using the browser to the left.

Will someone please share some advice on how you use (manipulate) the "reports" option in Rescan 3.x, particularly the summary data? I watched the video on using the review option. That option is especially good with detailed information.
Many thanks. Oldern