It may be that you've been hit as follows (from post #141 above):
HTH
Andrew
@mdsflyer - The first time you run the plugin, Skype will ask for permission for MediaPortal to access it - this is a security feature of Skype and cannot be suppressed. If you run MP in a window you should be able to see the dialog - click the "Allow this program to always access Skype" option and you should be fine from then on. (Let me know if this is/is not the problem...)
HTH
Andrew