It looks like the final destination has different results than earlier hops. Probably when you close the graphic window, you're turning off the graph for the final destination and turning it back on for hop 1 - which has a lot different performance.

The final destination is the important thing here, so look for problems there first. If you see a problem there, then look at earlier hops for issues that match.

You can see information about this issue in our knowledge base, here:

http://www.nessoft.com/kb/47

The last paragraph is especially talking about this problem.

- Pete