Had the same problem as digibum13. Had installed irreco and qtirreco, which both didn't work. "apt-get remove --purge lirc" and reinstall of raemote solved the problem.

A suggestion: Rename the app. It's hard to find it with the search-function. Ræmote looks cool, but you can't find it searching raemote.

Update: Played around some more. Seems like the combination of irreco and qtirreco made problems. At the moment I have only Raemote there, I can see the signal in Photo Booth, but the Macbook doesn't react. Will update, when it works.

Update 2: It works again. After some deleting, purging, reinstalling it now works again like a charm. Still a bit confused. Will try again to install qtirreco.

Update 3: Got raemote and qtirreco to work. Seems like the remotes, I used to test with my TV (lifetec) were the problem. Other work. At least with in the webcam. Now I need to find a TV to test it. (But that will be more interesting for the qtriecco people. raemotes works nice. thanks.)