I'm running Red Hat 7.0 and pd 0.2.6. When I run wish I get a window so I guess tcl/tk works. When I run pd in a terminal window I get the following message and no further action:
usr/local/pd/bin/pd-gui: error while loading shared libraries: /usr/local/pd/bin/pd-gui: undefined symbol: Tk_Main
hey Ian...the only problem is that it needs to be recompiled to run on RH7. Karl MacMillan kindly hosts precompiled RH7 binaries @: http://mambo.peabody.jhu.edu/~karlmac/download/