Regarding Boxee, please make sure you are running the latest version. 
If the problem persists, please

1) check your mapping settings at Remote Buddy > Prefs > Mapping > 
Boxee and consider resetting them to the defaults.

2) For Remote Buddy to work with Boxee, event client support needs to 
be enabled. It is enabled in Boxee by default. In early releases, you 
could (IIRC) still turn off event client support in Boxee's 
preferences. That option is no longer exposed in the user interface. 
But if you turned it off back then, chances are high it still is today.

With Boxee running, enter this command in Terminal.app to get a list 
of UDP ports Boxee is using:

lsof | grep Boxee | grep UDP

If Event Client support is enabled, an UDP port in the 9770-9780 range 
should be listed. I, for example, get this:

... 
Boxee 41295 felix 12u IPv4 0xee0c7b0 0t0 UDP 
localhost:9770 
...

Best regards, 
Felix Schwarz