thanks for letting me know.

Remote Buddy will only present you the "Activate Default Behaviour" 
menu item, if it can't recognize any forground or one of a few 
selected background applications. It is using 
"com.microsoft.PowerPoint" for recognition right now.

Do you have PowerPoint running and is it the frontmost AND active 
application when you press the menu button?

In the preferences, does "PowerPoint" turn up in the list of 
Behaviours on the left in the "Mapping" category? And if so, does it 
offer you a range of actions (just asking to make sure it's not using 
your own Behaviour)?

Finally, you may try to run LSRefresh on PowerPoint (you can grab 
LSRefresh from the Blog on this site) and subsequently restart Remote 
Buddy.

Best regards, 
Felix