posted 19 years ago
Sounds to me like you don't actually have it installed, or that it's installed but either way you're running Messenger from the disk image rather than your Applications folder.
Try this:
Open the disk image and drag the MSN Messenger application to your "Applications" folder. That should actually install the app (it will warn re over-writing if it's already there)
You can then safely "eject" (drag to the trash) the mounted disk image.
If you run Messenger from the Dock, ensure that the "alias" that's there actually points to the instance of Messenger in your Applications folder, rather than the one in the disk image.
Hope that helps.