[LAU] Hydrogen 0.9.4-1 doesn't launch anymore !!

Hi all, I've encountered a strange problem : hydrogen doesn't launch anymore ! It worked perfectly before. I'm running an Ubuntu 10.04 with jack 1.9.7. starting hydrogen 0.9.4-1 from a terminal gives $ hydrogen hydrogen: error while loading shared libraries: liblash.so.2: cannot open shared object file: No such file or directory but then liblash.so.2 is installed $ sudo locate liblash.so /usr/lib/liblash.so.1 /usr/lib/liblash.so.1.1.1 /usr/lib/liblash.so.2 running ldconfig didn't change a thing and then tried to reinstall both hydrogen + liblash, nothing there too ! Has someone encountered the same problem ? Does anyone have any idea ? Thanks a lot jy