I upgraded my Mac OSX. I changed the Snow Leopard (10.6) for Lion (10.7). And my SpecTcl stopped working. After a few minutes, I decided to analyze the loader and through the utility "file", it was found that a binary for PPC.
I solved my problem by copying the binary "Wish" on my existing MacOSX folder "/ System/Library/Frameworks/Tk.framework/Versions/8.5/Resources/Wish.app/Contents/MacOS/Wish" to the "SpecTcl1.2.2a.app/Contents/MacOS/Wish"
After replacing the file "Wish" for the original version in use on my system, everything works as it should.
*** Thank you for the tool. ***