DB2 version 7.2 on Windows 2000:

When I click on my instance in control center I get the message:

username and/or password supplied is incorrect

This happens irrespective of who I am logged in as - even administrator!

I can even hit "cancel" a few times without supplying anything and I am in!

Or, I can provide administrator or db2admin user-credentials and I am in!

I didn't have to supply this in the past. It is a nuisance! More than anything else, It'd be nice to know why this is happening.

I'd appreciate any help/suggestions on how to stop this from happening.