"libgtk-x11-2.0.so.0: cannot open shared object file"

["Redefined Horizons" <redefined.horizons@gmail.com>]

I'm trying to run the latest build of the Eclipse IDE on Debian. When
I try to start the program I receive an error about a shared library:

"error while loading shared libraries: libgtk-x11-2.0.so.0: cannot
open shared object file: No such file or directory"

I've never had trouble running Eclipse before, although they may have
added a dependency to this library in the latest version. I looked
online for a libgtk-x11-2.0 deb, but I couldn't find one.

Has anyone else had this problem? Can anyone give me some suggestions
on how to fix it?

Thanks,

Scott  Huey

P.S. - I'm running the latest version of Debian testing and I was
trying to use the Europa build of Eclipse.