Need help!

In csurf when I click on volume or surface to display images the following error message arises – the same thing happens if I try to use tkmedit/tksurfer from the command prompt.

“Error while loading share libraries: libtk8.3.so:cannot open shared object file: no such directory”

I cannot locate libtk8.3.so on my computer so I looked up RPMfind on the net – a download is available but it leads to a broken link – can anyone send me this library?

From the websearch I found that libtk8.3.so is part of a graphical toolkit – TCL scripting language. Do I need to have TCL on my machine?

Are there any other specific requirements to run Freesurfer?

Many thanks

Mary Fitzsimons