I just installed AirDroid on my phone (Epic 4G Touch, rooted, ParanoidAndroid 2.56)* and started it. I connected from the Chrome (24.0.1312.52) browser (via http://192.168.x.x) on my laptop (Debian 6.0.6) without any trouble. I clicked on the music icon (on the AirDroid browser tab) and opened a file manager on another workspace and BANG ZOOM!... the laptop screen went black and I was booted out to a login prompt (probably crashed my X server). The app on the phone showed 'connected', but the UI was frozen and I had to reboot the phone. Any ideas? Happy to provide further info or testing.
*see attached screenshot for details on phone config
*see attached screenshot for details on phone config