I've just installed ZD7 on Ubuntu 10.04 and when I pressed enter on the last step of the setup to launch the app I got the following error:

Press "Enter" to launch Zimbra Desktop; Press "Ctrl-c" to exit: 
bryn@blackbird:~$ /opt/zimbra/zdesktop/linux/prism/zdclient: error while loading shared libraries: libasound.so.2: cannot open shared object file: No such file or directory
That library exists in my /usr/lib directory. Its a sym link to /usr/lib/libasound.so.2.0.0.

How can I fix this please? I've had ZD7 installed on 10.10 and 11.04 but I've gone back to 10.04 for a bit more stability and now I'm getting this problem.

Thanks in advance.