I'm getting this error after installing Desktop 2, Beta 2 or 3 and trying to start. "Failed to execute child process "/opt/zimbra/zdesktop/linux/prism/zdclient" (No such file or directory)". I installed xulrunner and xulrunner-dev, no luck.
My computer is a fully patched Ubuntu 10.04 64-bit desktop. I'm happy to build from source, I tried from the main branch, it failed. The last time the source code on the Sourceforge Community site was updated was last month, so I assume that isn't it.