Problems after update alpha2 from apt servers

Hi all: I can't use thunderbird,openoffice,firefox and alsa doesn't works fine.I upgradealpha2 with smart. Anybody could explain me why this programs crash? for example: firefox -> /usr/bin/firefox: line 251: 27598 Violación de segmento $MOZ_PROGRAM $MOZ_LANG thunderbird -> ./run-mozilla.sh: line 131: 27655 Violación de segmento "$prog" ${1+"$@"} sorry for this mail,I write it with mail and there are many years ago I didn't use it... ;-) cheers -- Chema Ollés