This is in fact sounding weird and I really can't find any reason why Remote Buddy should have any such effect. For more clarity, please let me know what you mean by "closing". Is EyeTV actually quit - or is it just a playback window that's being closed?

Also, what remote control(s) and receiver(s) are you using - and on which OS version?

Thanks in advance.

Best regards, 
Felix Schwarz