Problems installing on Windows 7 x64

When trying to install on Windows 7 x64 I got the following message after
picking the distribution site and the install directory...

Available prebuilt GNU tools:

*** ecos-install.tcl error: *** ecos-install.tcl error: can't read
"ecos_install::toolchains(CYGWIN_NT-6.1-WOW64)": no such element in array

What do I need to do to resolve this?
PS. Searched Archives but couldn't find anything similar.


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