Unable to edit plot styles

Using Civil Series 2004 on Windows 7 Professional

When I open the plot styles folder and double click on any of the files I first geta popup saying " Windows is configuring Civil Series 2004". then "Windows in Configuring Express tools".  After it goes through those I get an error message saying File error and listing the file name I double clicked.

The support path is correct.  I am able to plot using all of my plot styles.  I am just unable to edit them. 

The files are also correctly set to open with the styexe application.

I tried a clean uninstall and reinstall to no avail.  Any ideas?  I have searched this forum and everywhere else I and Google could think of.

Should also mention that my coworker using the same setup and same version is able to edit the files with no problems. 

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