I just purchased Remote Buddy and a Harmony 515 to set up with EyeTv / Plex / Itunes.

I programmed the remote according to this article 
http://funwithcomputers.wordpress.com/

Although everything is working nicely I am experiencing double presses on, most often, the plus button.

I turned of the global mapping and the hotkey, to make sure they didnt interfere.

I used the old white remote to learn the commands to the Harmony, and tried to reduce the send value in the settings, to no avail.

Simon