Songbird won't launch: libjemalloc.so, no such file or directory

Songbird won't launch: "error while loading shared libraries: libjemalloc.so: cannot open shared object file: No such file or directory"

I am running songbird 1.2 on ubuntu, jaunty, x86. After reinstalling the OS, I cannot get songbird to launch when it had on previous installs of the same. I extract the tar into ~/Applications/Songbird and attempt to launch from ~/Applications/Songbird/songbird-bin at which point I get the "error while loading shared libraries: libjemalloc.so: cannot open shared object file: No such file or directory" error in the terminal. In the ~/Application/Songbird folder I see a copy of libjemalloc.so. I sudo chmod ugo+rwx ./libjemalloc.so, but the problem still persists.

Thanks for the help