Button HP Insight Management Agent f Servers missing

[Zeller Werner]

Hello,
who can help me on this problem? I have NW6.5 sp3 on a ML530 with PSP7.40a Agent.
On a PC with IE with ServerIP:2301 Screen I don't see the Botton HP Insight Management Agent for servers! If I go with the mouse where the button should be, I can see the Link. The IE Browser is opening a long time the missing link.
How can I fix that?
Should I stop on the server the CPQsnmp.ncf? And if yes, how can I do this? (I don't like to abend the server)Is there a uninstall.ncf?

Thanks a lot!

werner