I have ZAM 7.0 +sp1 +IR11 server

When I do an "Application Usage by Product", I am seeing incorrect summary
counts. For example some Products are showing a summary of "5", but when I
click on the hyperlink to see the details, the page is blank. Another
example, is that I supposedly have "2" sharepoint "current installations,
"1" is "used" and "1" is "not used", however when I click on the "used" I
see my valid sharepoint server name, and when I click on the "not used" it
is a blank page. Any ideas please, or how to troubleshoot.