PeopleSoft 8 and Window 7

I currently have to run PS8.0. (Long story, not interesting) It works fine on Windows 7 except for one, really annoying problem. when I go to export to Excel (2007 or 2010) or open an nVision report, after a long delay, I get a Windows security pop-up that wants me to logon. If I cancel, it displays what I wanted. If I sign in, it asks me to do that two mroe times and then displays what I want. If I select the check box to remember me, it is not effective. Does anyone know why this happening or how