Try uninstalling Windows Live Messenger with ZapMessenger and then try reinstalling.
quote:
Originally posted by TReKiE
How to use:
To use ZapMessenger, just download the zip and run the executable. No installation is required. Please note that the .NET Framework 2.0 or above is required, which you can install from Microsoft if you don’t already have it. The Framework has been on Windows Update for quite some time and is included in Vista by default, so more than likely it is already installed.