HP dv4 1125nr - Intel - Kubuntu 11.10 - Kdenlive 0.8.3

After upgrading from 11.04 to 11.10 I lost audio in Kdenlive, even in sound samples from Online Resources (other apps are ok). I noticed that the upgrade removed PulseAudio, but don't know whether this is a problem or not.

Thanks in advance for any help.

PS: Is it possible to replace Rekonq as the default browser in Kdenlive?

Changing the audio driver from PulseAudio to ALSA at the Configurations window solved the problem.

Thanks everybody for you interest, and specially OneLine at the Kubuntu Forums for the detailed instructions.