Just wanted to report that I have resolved my issues. Thank you for the help. Here is what worked for me in case someone else faces the same problems.
First I found that I had downloaded X11 and XQuartz so I de-installed X11. Still did not work, but when I tried the fix Windell H. Oskay suggested which was to: Control click inkscape. Click show contents. Go to resources. Double-click on a script there named "opendoc." (I am not sure what this does, but it apparently has been a permanent fix for a number of people.)
to get it. I did this and installed it and now everything works fine.
Thanks for all the help