The are many problems you may find with cinerella :If no sound, cineralla uses by default OSS. You'll have to chose like in Audacyty ALSA.
You also mays havee problems with typographical accents (for example if you make a french video for France or Quebec). There are some solutions.
Don't make active Compiz if you see some strange behaviour with it. Do you work with other people using cinerella ?
