thanks for your feedback.

What you are experiencing can only be rooted in hardware or the 
Apple's driver for the IR receiver. Either the hardware messes up the 
IR signals transmitted when pressing buttons very fast in a row or 
the driver hickups on that.

Fact is, Remote Buddy does not lose any of the button events it 
receives. And since button press and release are two different events 
for the plus and minus buttons, the respective release event did not 
reach it, which makes it detect it as continued button press and 
makes it internally generate repeat events, which are then dispatched 
to the menu.

The chain of event handling roughly works like this:

1) Button press

2) IR signal

3) IR receiver receives signal

4) driver by Apple parses the signal

5) driver by Apple sends a message to the HID layer (high level event 
handling from here on, with queueing and everything)

6) Remote Buddy receives the event. The sourcecode I have under my 
control starts getting used here.

7) Event handling

So, to sum it all up, I fear I can't do anything about it since all 
the determining factors are outside my sphere of influence. Sorry.

Felix